{
  "abi": [
    {
      "inputs": [
        {
          "internalType": "string",
          "name": "name_",
          "type": "string"
        },
        {
          "internalType": "string",
          "name": "symbol_",
          "type": "string"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "constructor"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "owner",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "spender",
          "type": "address"
        },
        {
          "indexed": false,
          "internalType": "uint256",
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "Approval",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "from",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "indexed": false,
          "internalType": "uint256",
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "Transfer",
      "type": "event"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "owner",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "spender",
          "type": "address"
        }
      ],
      "name": "allowance",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "spender",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "amount",
          "type": "uint256"
        }
      ],
      "name": "approve",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        }
      ],
      "name": "balanceOf",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [],
      "name": "decimals",
      "outputs": [
        {
          "internalType": "uint8",
          "name": "",
          "type": "uint8"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "spender",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "subtractedValue",
          "type": "uint256"
        }
      ],
      "name": "decreaseAllowance",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "spender",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "addedValue",
          "type": "uint256"
        }
      ],
      "name": "increaseAllowance",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [],
      "name": "name",
      "outputs": [
        {
          "internalType": "string",
          "name": "",
          "type": "string"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [],
      "name": "symbol",
      "outputs": [
        {
          "internalType": "string",
          "name": "",
          "type": "string"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [],
      "name": "totalSupply",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "amount",
          "type": "uint256"
        }
      ],
      "name": "transfer",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "from",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "amount",
          "type": "uint256"
        }
      ],
      "name": "transferFrom",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    }
  ],
  "bytecode": {
    "object": "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",
    "sourceMap": "1401:11610:19:-:0;;;1976:113;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;2042:5;:13;2050:5;2042;:13;:::i;:::-;-1:-1:-1;2065:7:19;:17;2075:7;2065;:17;:::i;:::-;;1976:113;;1401:11610;;650:127:69;711:10;706:3;702:20;699:1;692:31;742:4;739:1;732:15;766:4;763:1;756:15;782:246;-1:-1:-1;;635:2:69;615:14;;611:28;857:37;;-1:-1:-1;;;;;909:34:69;;945:22;;;906:62;903:88;;;971:18;;:::i;:::-;1007:2;1000:22;-1:-1:-1;;782:246:69:o;1033:168::-;1067:6;1104:20;76:2;70:9;;14:67;1104:20;1143:8;1133:18;;1160:35;1190:4;1180:8;1160:35;:::i;:::-;;1033:168;;;:::o;1206:184::-;1255:4;-1:-1:-1;;;;;1277:30:69;;1274:56;;;1310:18;;:::i;:::-;-1:-1:-1;635:2:69;615:14;-1:-1:-1;;611:28:69;1379:4;1347:37;;1206:184::o;1395:250::-;1480:1;1490:113;1504:6;1501:1;1498:13;1490:113;;;1580:11;;;1574:18;1561:11;;;1554:39;1526:2;1519:10;1490:113;;;-1:-1:-1;;1637:1:69;1619:16;;1612:27;1395:250::o;1650:452::-;1726:5;1761:53;1777:36;1806:6;1777:36;:::i;:::-;1761:53;:::i;:::-;1832:7;1823:16;;1864:6;1855:7;1848:23;1904:3;1895:6;1890:3;1886:16;1883:25;1880:140;;;1931:79;191:1;188;181:12;1931:79;2029:67;2089:6;2082:4;2073:7;2069:18;2064:3;2029:67;:::i;:::-;;1650:452;;;;;:::o;2107:332::-;2161:5;2214:3;2207:4;2199:6;2195:17;2191:27;2181:150;;2242:79;191:1;188;181:12;2242:79;2349:84;2429:3;2420:6;2414:13;2407:4;2399:6;2395:17;2349:84;:::i;:::-;2340:93;2107:332;-1:-1:-1;;;2107:332:69:o;2444:842::-;2543:6;2551;2604:2;2592:9;2583:7;2579:23;2575:32;2572:147;;;2630:79;191:1;188;181:12;2630:79;2742:16;;-1:-1:-1;;;;;2770:30:69;;2767:145;;;2823:79;191:1;188;181:12;2823:79;2931:61;2984:7;2975:6;2964:9;2960:22;2931:61;:::i;:::-;3038:2;3023:18;;3017:25;2921:71;;-1:-1:-1;3017:25:69;-1:-1:-1;;;;;;3054:32:69;;3051:147;;;3109:79;191:1;188;181:12;3109:79;3217:63;3272:7;3261:8;3250:9;3246:24;3217:63;:::i;:::-;3207:73;;;2444:842;;;;;:::o;3372:127::-;3433:10;3428:3;3424:20;3421:1;3414:31;3464:4;3461:1;3454:15;3488:4;3485:1;3478:15;3504:318;3589:1;3585:12;;;;;;3659;;;3680:63;;3736:4;3726:8;3722:19;3712:29;;3680:63;3789:2;3781:6;3778:14;3758:18;3755:38;3752:64;;3796:18;;:::i;:::-;3752:64;;3504:318;;;:::o;4601:138::-;4647:9;4684:49;4700:32;4725:5;4700:32;4472:67;4709:22;4532:5;4472:67;4684:49;4671:62;4601:138;-1:-1:-1;;4601:138:69:o;4814:210::-;4911:106;4960:56;4982:33;5009:5;4982:33;:::i;4960:56::-;4939:11;;4256:1;4252:18;;;4122:16;;;-1:-1:-1;;4122:16:69;;;4427:9;4416:21;4413:48;;4145:322;4911:106;4898:120;;-1:-1:-1;;4814:210:69:o;5097:156::-;5162:85;5072:3;5208:6;5202:4;5162:85;:::i;:::-;;;5097:156::o;5258:187::-;5338:3;5331:5;5328:14;5320:119;;;5392:37;5427:1;5420:5;5392:37;:::i;:::-;5365:1;5354:13;5320:119;;5450:419;5552:2;5547:3;5544:11;5541:322;;;3900:1;3893:14;;;3937:4;3924:18;;4036:2;4025:14;;4022:1;4018:22;5666:8;5662:41;5734:2;5722:10;5719:18;5716:49;;;-1:-1:-1;5755:8:69;5716:49;5778:75;4036:2;4025:14;;4022:1;4018:22;5822:8;5818:34;5805:11;5778:75;:::i;:::-;;;5541:322;5450:419;;;:::o;6320:1301::-;3353:12;;-1:-1:-1;;;;;6476:30:69;;6473:56;;;6509:18;;:::i;:::-;6538:97;6628:6;6588:38;6620:4;6614:11;6588:38;:::i;:::-;6582:4;6538:97;:::i;:::-;6684:4;6715:2;6704:14;;6732:1;6727:637;;;;7408:1;7425:6;7422:89;;;-1:-1:-1;7477:19:69;;;7471:26;7422:89;-1:-1:-1;;6100:1:69;6096:13;;;5955:16;6063:56;6053:67;;6301:1;6297:11;;;6286:23;7531:4;7524:81;;6697:918;;6727:637;3900:1;3893:14;;;3937:4;3924:18;;-1:-1:-1;;6763:20:69;;;6881:222;6895:7;6892:1;6889:14;6881:222;;;6977:19;;;6971:26;6956:42;;7084:4;7069:20;;;;7037:1;7025:14;;;;6911:12;6881:222;;;6885:3;7131:6;7122:7;7119:19;7116:189;;;7192:19;;;7186:26;-1:-1:-1;;6100:1:69;6096:13;;;;;5955:16;6063:56;6053:67;7229:62;;7116:189;-1:-1:-1;;;;7351:1:69;7335:14;;;7331:22;7318:36;;-1:-1:-1;6320:1301:69:o;:::-;1401:11610:19;;;;;;",
    "linkReferences": {}
  },
  "deployedBytecode": {
    "object": "0x608060405234801561001057600080fd5b50600436106100c95760003560e01c80633950935111610081578063a457c2d71161005b578063a457c2d714610190578063a9059cbb146101a3578063dd62ed3e146101b657600080fd5b8063395093511461013f57806370a082311461015257806395d89b411461018857600080fd5b806318160ddd116100b257806318160ddd1461010c57806323b872dd1461011d578063313ce5671461013057600080fd5b806306fdde03146100ce578063095ea7b3146100ec575b600080fd5b6100d66101fc565b6040516100e39190610753565b60405180910390f35b6100ff6100fa3660046107c7565b61028e565b6040516100e39190610809565b6002545b6040516100e3919061081d565b6100ff61012b36600461082b565b6102a8565b60126040516100e3919061087d565b6100ff61014d3660046107c7565b6102cc565b61011061016036600461088b565b73ffffffffffffffffffffffffffffffffffffffff1660009081526020819052604090205490565b6100d6610318565b6100ff61019e3660046107c7565b610327565b6100ff6101b13660046107c7565b6103ab565b6101106101c43660046108aa565b73ffffffffffffffffffffffffffffffffffffffff918216600090815260016020908152604080832093909416825291909152205490565b60606003805461020b90610908565b80601f016020809104026020016040519081016040528092919081815260200182805461023790610908565b80156102845780601f1061025957610100808354040283529160200191610284565b820191906000526020600020905b81548152906001019060200180831161026757829003601f168201915b5050505050905090565b60003361029c8185856103b9565b60019150505b92915050565b6000336102b68582856104c8565b6102c185858561056f565b506001949350505050565b33600081815260016020908152604080832073ffffffffffffffffffffffffffffffffffffffff8716845290915281205490919061029c9082908690610313908790610966565b6103b9565b60606004805461020b90610908565b33600081815260016020908152604080832073ffffffffffffffffffffffffffffffffffffffff871684529091528120549091908381101561039e576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610395906109e0565b60405180910390fd5b6102c182868684036103b9565b60003361029c81858561056f565b73ffffffffffffffffffffffffffffffffffffffff8316610406576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161039590610a4a565b73ffffffffffffffffffffffffffffffffffffffff8216610453576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161039590610ab4565b73ffffffffffffffffffffffffffffffffffffffff80841660008181526001602090815260408083209487168084529490915290819020849055517f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925906104bb90859061081d565b60405180910390a3505050565b73ffffffffffffffffffffffffffffffffffffffff8381166000908152600160209081526040808320938616835292905220547fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff8114610569578181101561055c576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161039590610ac6565b61056984848484036103b9565b50505050565b73ffffffffffffffffffffffffffffffffffffffff83166105bc576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161039590610b5b565b73ffffffffffffffffffffffffffffffffffffffff8216610609576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161039590610bc5565b73ffffffffffffffffffffffffffffffffffffffff831660009081526020819052604090205481811015610669576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161039590610c2f565b73ffffffffffffffffffffffffffffffffffffffff80851660008181526020819052604080822086860390559286168082529083902080548601905591517fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef906106d490869061081d565b60405180910390a3610569565b60005b838110156106fc5781810151838201526020016106e4565b50506000910152565b600061070f825190565b808452602084016107248282602087016106e1565b7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0601f83011601949350505050565b6020815260006107666020830184610705565b9392505050565b600073ffffffffffffffffffffffffffffffffffffffff82166102a2565b6107948161076d565b811461079f57600080fd5b50565b8035806107ae8161078b565b5092915050565b80610794565b8035806107ae816107b5565b600080604083850312156107dd576107dd600080fd5b6107e784846107a2565b91506107f684602085016107bb565b90509250929050565b8015155b82525050565b602081016102a282846107ff565b80610803565b602081016102a28284610817565b60008060006060848603121561084357610843600080fd5b61084d85856107a2565b925061085c85602086016107a2565b915061086b85604086016107bb565b90509250925092565b60ff8116610803565b602081016102a28284610874565b6000602082840312156108a0576108a0600080fd5b61076683836107a2565b600080604083850312156108c0576108c0600080fd5b6108ca84846107a2565b91506107f684602085016107a2565b7f4e487b7100000000000000000000000000000000000000000000000000000000600052602260045260246000fd5b600181811c90819083168061091e57607f821692505b602083108103610930576109306108d9565b5050919050565b7f4e487b7100000000000000000000000000000000000000000000000000000000600052601160045260246000fd5b81810181818082111561097b5761097b610937565b505092915050565b602581526000602082017f45524332303a2064656372656173656420616c6c6f77616e63652062656c6f7781527f207a65726f00000000000000000000000000000000000000000000000000000060208201525b60400192915050565b6020815260006102a260208301610983565b602481526000602082017f45524332303a20617070726f76652066726f6d20746865207a65726f2061646481527f726573730000000000000000000000000000000000000000000000000000000060208201526109d7565b6020815260006102a2602083016109f2565b602281526000602082017f45524332303a20617070726f766520746f20746865207a65726f20616464726581527f737300000000000000000000000000000000000000000000000000000000000060208201526109d7565b6020815260006102a260208301610a5c565b6020815260006102a260208301601d81527f45524332303a20696e73756666696369656e7420616c6c6f77616e6365000000602082015260400190565b602581526000602082017f45524332303a207472616e736665722066726f6d20746865207a65726f20616481527f647265737300000000000000000000000000000000000000000000000000000060208201526109d7565b6020815260006102a260208301610b03565b602381526000602082017f45524332303a207472616e7366657220746f20746865207a65726f206164647281527f657373000000000000000000000000000000000000000000000000000000000060208201526109d7565b6020815260006102a260208301610b6d565b602681526000602082017f45524332303a207472616e7366657220616d6f756e742065786365656473206281527f616c616e6365000000000000000000000000000000000000000000000000000060208201526109d7565b6020815260006102a260208301610bd756fea2646970667358221220baa75156c66c0bd8aa8ef90496fd64050645b44e46a761a31af5b4f237680d8364736f6c63430008160033",
    "sourceMap": "1401:11610:19:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2154:98;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;4431:197;;;;;;:::i;:::-;;:::i;:::-;;;;;;;:::i;3242:106::-;3329:12;;3242:106;;;;;;;:::i;5190:286::-;;;;;;:::i;:::-;;:::i;3091:91::-;3173:2;3091:91;;;;;;:::i;5871:234::-;;;;;;:::i;:::-;;:::i;3406:125::-;;;;;;:::i;:::-;3506:18;;3480:7;3506:18;;;;;;;;;;;;3406:125;2365:102;;;:::i;6592:427::-;;;;;;:::i;:::-;;:::i;3727:189::-;;;;;;:::i;:::-;;:::i;3974:149::-;;;;;;:::i;:::-;4089:18;;;;4063:7;4089:18;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;3974:149;2154:98;2208:13;2240:5;2233:12;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2154:98;:::o;4431:197::-;4514:4;719:10:25;4568:32:19;719:10:25;4584:7:19;4593:6;4568:8;:32::i;:::-;4617:4;4610:11;;;4431:197;;;;;:::o;5190:286::-;5317:4;719:10:25;5373:38:19;5389:4;719:10:25;5404:6:19;5373:15;:38::i;:::-;5421:27;5431:4;5437:2;5441:6;5421:9;:27::i;:::-;-1:-1:-1;5465:4:19;;5190:286;-1:-1:-1;;;;5190:286:19:o;5871:234::-;719:10:25;5959:4:19;4089:18;;;:11;:18;;;;;;;;;:27;;;;;;;;;;5959:4;;719:10:25;6013:64:19;;719:10:25;;4089:27:19;;6038:38;;6066:10;;6038:38;:::i;:::-;6013:8;:64::i;2365:102::-;2421:13;2453:7;2446:14;;;;;:::i;6592:427::-;719:10:25;6685:4:19;4089:18;;;:11;:18;;;;;;;;;:27;;;;;;;;;;6685:4;;719:10:25;6829:15:19;6809:16;:35;;6801:85;;;;;;;;;;;;:::i;:::-;;;;;;;;;6920:60;6929:5;6936:7;6964:15;6945:16;:34;6920:8;:60::i;3727:189::-;3806:4;719:10:25;3860:28:19;719:10:25;3877:2:19;3881:6;3860:9;:28::i;10504:370::-;10635:19;;;10627:68;;;;;;;;;;;;:::i;:::-;10713:21;;;10705:68;;;;;;;;;;;;:::i;:::-;10784:18;;;;;;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;;:36;;;10835:32;;;;;10814:6;;10835:32;:::i;:::-;;;;;;;;10504:370;;;:::o;11155:441::-;4089:18;;;;11285:24;4089:18;;;:11;:18;;;;;;;;:27;;;;;;;;;;11371:17;11351:37;;11347:243;;11432:6;11412:16;:26;;11404:68;;;;;;;;;;;;:::i;:::-;11514:51;11523:5;11530:7;11558:6;11539:16;:25;11514:8;:51::i;:::-;11275:321;11155:441;;;:::o;7473:818::-;7599:18;;;7591:68;;;;;;;;;;;;:::i;:::-;7677:16;;;7669:64;;;;;;;;;;;;:::i;:::-;7815:15;;;7793:19;7815:15;;;;;;;;;;;7848:21;;;;7840:72;;;;;;;;;;;;:::i;:::-;7946:15;;;;:9;:15;;;;;;;;;;;7964:20;;;7946:38;;8161:13;;;;;;;;;;:23;;;;;;8210:26;;;;;;7978:6;;8210:26;:::i;:::-;;;;;;;;8247:37;12180:121;250:250:69;335:1;345:113;359:6;356:1;353:13;345:113;;;435:11;;;429:18;416:11;;;409:39;381:2;374:10;345:113;;;-1:-1:-1;;492:1:69;474:16;;467:27;250:250::o;672:306::-;714:3;746:26;766:5;76:12;;14:76;746:26;182:19;;;234:4;225:14;;851:67;911:6;904:5;897:4;890:5;886:16;851:67;:::i;:::-;594:66;589:2;578:14;;574:87;934:38;;672:306;-1:-1:-1;;;;672:306:69:o;983:220::-;1132:2;1121:9;1114:21;1095:4;1152:45;1193:2;1182:9;1178:18;1170:6;1152:45;:::i;:::-;1144:53;983:220;-1:-1:-1;;;983:220:69:o;1455:96::-;1490:7;1401:42;1390:54;;1523:22;1322:128;1556:122;1631:22;1647:5;1631:22;:::i;:::-;1624:5;1621:33;1611:61;;1668:1;1665;1658:12;1611:61;1556:122;:::o;1683:172::-;1762:20;;;1816:33;1762:20;1816:33;:::i;:::-;;1683:172;;;;:::o;1932:122::-;2023:5;2007:22;1860:67;2059:172;2138:20;;;2192:33;2138:20;2192:33;:::i;2236:373::-;2304:6;2312;2365:2;2353:9;2344:7;2340:23;2336:32;2333:147;;;2391:79;1401:11610:19;;;2391:79:69;2499:38;2529:7;2518:9;2499:38;:::i;:::-;2489:48;;2556:47;2595:7;2590:2;2579:9;2575:18;2556:47;:::i;:::-;2546:57;;2236:373;;;;;:::o;2711:89::-;2686:13;;2679:21;2774:19;2769:3;2762:32;;;2711:89::o;2805:180::-;2933:2;2918:18;;2945:34;2922:9;2961:6;2945:34;:::i;2990:95::-;3072:5;3056:22;1860:67;3090:189;3224:2;3209:18;;3236:37;3213:9;3255:6;3236:37;:::i;3284:456::-;3361:6;3369;3377;3430:2;3418:9;3409:7;3405:23;3401:32;3398:147;;;3456:79;1401:11610:19;;;3456:79:69;3564:38;3594:7;3583:9;3564:38;:::i;:::-;3554:48;;3621:47;3660:7;3655:2;3644:9;3640:18;3621:47;:::i;:::-;3611:57;;3687:47;3726:7;3721:2;3710:9;3706:18;3687:47;:::i;:::-;3677:57;;3284:456;;;;;:::o;3826:91::-;3814:4;3803:16;;3890:20;3745:76;3922:183;4052:2;4037:18;;4064:35;4041:9;4081:6;4064:35;:::i;4110:290::-;4169:6;4222:2;4210:9;4201:7;4197:23;4193:32;4190:147;;;4248:79;1401:11610:19;;;4248:79:69;4356:38;4386:7;4375:9;4356:38;:::i;4405:373::-;4473:6;4481;4534:2;4522:9;4513:7;4509:23;4505:32;4502:147;;;4560:79;1401:11610:19;;;4560:79:69;4668:38;4698:7;4687:9;4668:38;:::i;:::-;4658:48;;4725:47;4764:7;4759:2;4748:9;4744:18;4725:47;:::i;4783:184::-;4835:77;4832:1;4825:88;4932:4;4929:1;4922:15;4956:4;4953:1;4946:15;4972:318;5057:1;5053:12;;;;;;5127;;;5148:63;;5204:4;5194:8;5190:19;5180:29;;5148:63;5257:2;5249:6;5246:14;5226:18;5223:38;5220:64;;5264:18;;:::i;:::-;5220:64;;4972:318;;;:::o;5295:184::-;5347:77;5344:1;5337:88;5444:4;5441:1;5434:15;5468:4;5465:1;5458:15;5484:213;5593:28;;;5569:1;5593:28;5654:14;;;5651:40;;;5671:18;;:::i;:::-;5651:40;;5484:213;;;;:::o;5924:262::-;6043:2;182:19;;5971:3;234:4;225:14;;5837:34;5822:50;;5905:7;5900:2;5888:15;;5881:32;6055:95;6177:2;6166:14;;5924:262;-1:-1:-1;;5924:262:69:o;6191:277::-;6393:2;6382:9;6375:21;6356:4;6413:49;6458:2;6447:9;6443:18;6413:49;:::i;6694:262::-;6813:2;182:19;;6741:3;234:4;225:14;;6608:34;6593:50;;6676:6;6671:2;6659:15;;6652:31;6825:95;6473:216;6961:277;7163:2;7152:9;7145:21;7126:4;7183:49;7228:2;7217:9;7213:18;7183:49;:::i;7462:262::-;7581:2;182:19;;7509:3;234:4;225:14;;7378:34;7363:50;;7446:4;7441:2;7429:15;;7422:29;7593:95;7243:214;7729:277;7931:2;7920:9;7913:21;7894:4;7951:49;7996:2;7985:9;7981:18;7951:49;:::i;8456:277::-;8658:2;8647:9;8640:21;8621:4;8678:49;8723:2;8712:9;8708:18;8308:2;182:19;;8146:31;234:4;225:14;;8131:47;8431:14;;;8189:262;8960;9079:2;182:19;;9007:3;234:4;225:14;;8873:34;8858:50;;8941:7;8936:2;8924:15;;8917:32;9091:95;8738:217;9227:277;9429:2;9418:9;9411:21;9392:4;9449:49;9494:2;9483:9;9479:18;9449:49;:::i;9729:262::-;9848:2;182:19;;9776:3;234:4;225:14;;9644:34;9629:50;;9712:5;9707:2;9695:15;;9688:30;9860:95;9509:215;9996:277;10198:2;10187:9;10180:21;10161:4;10218:49;10263:2;10252:9;10248:18;10218:49;:::i;10501:257::-;10615:2;182:19;;10543:3;234:4;225:14;;10413:34;10398:50;;10481:8;10476:2;10464:15;;10457:33;10627:95;10278:218;10763:272;10965:2;10954:9;10947:21;10928:4;10985:44;11025:2;11014:9;11010:18;10985:44;:::i",
    "linkReferences": {}
  },
  "methodIdentifiers": {
    "allowance(address,address)": "dd62ed3e",
    "approve(address,uint256)": "095ea7b3",
    "balanceOf(address)": "70a08231",
    "decimals()": "313ce567",
    "decreaseAllowance(address,uint256)": "a457c2d7",
    "increaseAllowance(address,uint256)": "39509351",
    "name()": "06fdde03",
    "symbol()": "95d89b41",
    "totalSupply()": "18160ddd",
    "transfer(address,uint256)": "a9059cbb",
    "transferFrom(address,address,uint256)": "23b872dd"
  },
  "rawMetadata": "{\"compiler\":{\"version\":\"0.8.22+commit.4fc1097e\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"string\",\"name\":\"name_\",\"type\":\"string\"},{\"internalType\":\"string\",\"name\":\"symbol_\",\"type\":\"string\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"subtractedValue\",\"type\":\"uint256\"}],\"name\":\"decreaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"addedValue\",\"type\":\"uint256\"}],\"name\":\"increaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"details\":\"Implementation of the {IERC20} interface. This implementation is agnostic to the way tokens are created. This means that a supply mechanism has to be added in a derived contract using {_mint}. For a generic mechanism see {ERC20PresetMinterPauser}. TIP: For a detailed writeup see our guide https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How to implement supply mechanisms]. We have followed general OpenZeppelin Contracts guidelines: functions revert instead returning `false` on failure. This behavior is nonetheless conventional and does not conflict with the expectations of ERC20 applications. Additionally, an {Approval} event is emitted on calls to {transferFrom}. This allows applications to reconstruct the allowance for all accounts just by listening to said events. Other implementations of the EIP may not emit these events, as it isn't required by the specification. Finally, the non-standard {decreaseAllowance} and {increaseAllowance} functions have been added to mitigate the well-known issues around setting allowances. See {IERC20-approve}.\",\"events\":{\"Approval(address,address,uint256)\":{\"details\":\"Emitted when the allowance of a `spender` for an `owner` is set by a call to {approve}. `value` is the new allowance.\"},\"Transfer(address,address,uint256)\":{\"details\":\"Emitted when `value` tokens are moved from one account (`from`) to another (`to`). Note that `value` may be zero.\"}},\"kind\":\"dev\",\"methods\":{\"allowance(address,address)\":{\"details\":\"See {IERC20-allowance}.\"},\"approve(address,uint256)\":{\"details\":\"See {IERC20-approve}. NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on `transferFrom`. This is semantically equivalent to an infinite approval. Requirements: - `spender` cannot be the zero address.\"},\"balanceOf(address)\":{\"details\":\"See {IERC20-balanceOf}.\"},\"constructor\":{\"details\":\"Sets the values for {name} and {symbol}. The default value of {decimals} is 18. To select a different value for {decimals} you should overload it. All two of these values are immutable: they can only be set once during construction.\"},\"decimals()\":{\"details\":\"Returns the number of decimals used to get its user representation. For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5.05` (`505 / 10 ** 2`). Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei. This is the value {ERC20} uses, unless this function is overridden; NOTE: This information is only used for _display_ purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}.\"},\"decreaseAllowance(address,uint256)\":{\"details\":\"Atomically decreases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address. - `spender` must have allowance for the caller of at least `subtractedValue`.\"},\"increaseAllowance(address,uint256)\":{\"details\":\"Atomically increases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address.\"},\"name()\":{\"details\":\"Returns the name of the token.\"},\"symbol()\":{\"details\":\"Returns the symbol of the token, usually a shorter version of the name.\"},\"totalSupply()\":{\"details\":\"See {IERC20-totalSupply}.\"},\"transfer(address,uint256)\":{\"details\":\"See {IERC20-transfer}. Requirements: - `to` cannot be the zero address. - the caller must have a balance of at least `amount`.\"},\"transferFrom(address,address,uint256)\":{\"details\":\"See {IERC20-transferFrom}. Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20}. NOTE: Does not update the allowance if the current allowance is the maximum `uint256`. Requirements: - `from` and `to` cannot be the zero address. - `from` must have a balance of at least `amount`. - the caller must have allowance for ``from``'s tokens of at least `amount`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol\":\"ERC20\"},\"evmVersion\":\"paris\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"details\":{\"constantOptimizer\":true,\"cse\":true,\"deduplicate\":true,\"inliner\":true,\"jumpdestRemover\":true,\"orderLiterals\":true,\"peephole\":true,\"simpleCounterForLoopUncheckedIncrement\":true,\"yul\":true,\"yulDetails\":{\"optimizerSteps\":\"dhfoD[xarrscLMcCTU]uljmul:fDnTOcmu\",\"stackAllocation\":true}},\"runs\":999999999},\"remappings\":[\":@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/\",\":@uniswap/v3-core/=lib_uniswap/v3-core/\",\":@uniswap/v3-periphery/=lib_uniswap/v3-periphery/\",\":ds-test/=lib/forge-std/lib/ds-test/src/\",\":forge-std/=lib/forge-std/src/\",\":openzeppelin-contracts/=lib/openzeppelin-contracts/\",\":v3-core/=lib_uniswap/v3-core/\",\":v3-periphery/libraries/=lib_uniswap/v3-periphery/contracts/libraries/\"]},\"sources\":{\"lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol\":{\"keccak256\":\"0x4ffc0547c02ad22925310c585c0f166f8759e2648a09e9b489100c42f15dd98d\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://15f52f51413a9de1ff191e2f6367c62178e1df7806d7880fe857a98b0b66253d\",\"dweb:/ipfs/QmaQG1fwfgUt5E9nu2cccFiV47B2V78MM1tCy1qB7n4MsH\"]},\"lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0x9750c6b834f7b43000631af5cc30001c5f547b3ceb3635488f140f60e897ea6b\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://5a7d5b1ef5d8d5889ad2ed89d8619c09383b80b72ab226e0fe7bde1636481e34\",\"dweb:/ipfs/QmebXWgtEfumQGBdVeM6c71McLixYXQP5Bk6kKXuoY4Bmr\"]},\"lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol\":{\"keccak256\":\"0x8de418a5503946cabe331f35fe242d3201a73f67f77aaeb7110acb1f30423aca\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://5a376d3dda2cb70536c0a45c208b29b34ac560c4cb4f513a42079f96ba47d2dd\",\"dweb:/ipfs/QmZQg6gn1sUpM8wHzwNvSnihumUCAhxD119MpXeKp8B9s8\"]},\"lib/openzeppelin-contracts/contracts/utils/Context.sol\":{\"keccak256\":\"0xe2e337e6dde9ef6b680e07338c493ebea1b5fd09b43424112868e9cc1706bca7\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://6df0ddf21ce9f58271bdfaa85cde98b200ef242a05a3f85c2bc10a8294800a92\",\"dweb:/ipfs/QmRK2Y5Yc6BK7tGKkgsgn3aJEQGi5aakeSPZvS65PV8Xp3\"]}},\"version\":1}",
  "metadata": {
    "compiler": {
      "version": "0.8.22+commit.4fc1097e"
    },
    "language": "Solidity",
    "output": {
      "abi": [
        {
          "inputs": [
            {
              "internalType": "string",
              "name": "name_",
              "type": "string"
            },
            {
              "internalType": "string",
              "name": "symbol_",
              "type": "string"
            }
          ],
          "stateMutability": "nonpayable",
          "type": "constructor"
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "owner",
              "type": "address",
              "indexed": true
            },
            {
              "internalType": "address",
              "name": "spender",
              "type": "address",
              "indexed": true
            },
            {
              "internalType": "uint256",
              "name": "value",
              "type": "uint256",
              "indexed": false
            }
          ],
          "type": "event",
          "name": "Approval",
          "anonymous": false
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "from",
              "type": "address",
              "indexed": true
            },
            {
              "internalType": "address",
              "name": "to",
              "type": "address",
              "indexed": true
            },
            {
              "internalType": "uint256",
              "name": "value",
              "type": "uint256",
              "indexed": false
            }
          ],
          "type": "event",
          "name": "Transfer",
          "anonymous": false
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "owner",
              "type": "address"
            },
            {
              "internalType": "address",
              "name": "spender",
              "type": "address"
            }
          ],
          "stateMutability": "view",
          "type": "function",
          "name": "allowance",
          "outputs": [
            {
              "internalType": "uint256",
              "name": "",
              "type": "uint256"
            }
          ]
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "spender",
              "type": "address"
            },
            {
              "internalType": "uint256",
              "name": "amount",
              "type": "uint256"
            }
          ],
          "stateMutability": "nonpayable",
          "type": "function",
          "name": "approve",
          "outputs": [
            {
              "internalType": "bool",
              "name": "",
              "type": "bool"
            }
          ]
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "account",
              "type": "address"
            }
          ],
          "stateMutability": "view",
          "type": "function",
          "name": "balanceOf",
          "outputs": [
            {
              "internalType": "uint256",
              "name": "",
              "type": "uint256"
            }
          ]
        },
        {
          "inputs": [],
          "stateMutability": "view",
          "type": "function",
          "name": "decimals",
          "outputs": [
            {
              "internalType": "uint8",
              "name": "",
              "type": "uint8"
            }
          ]
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "spender",
              "type": "address"
            },
            {
              "internalType": "uint256",
              "name": "subtractedValue",
              "type": "uint256"
            }
          ],
          "stateMutability": "nonpayable",
          "type": "function",
          "name": "decreaseAllowance",
          "outputs": [
            {
              "internalType": "bool",
              "name": "",
              "type": "bool"
            }
          ]
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "spender",
              "type": "address"
            },
            {
              "internalType": "uint256",
              "name": "addedValue",
              "type": "uint256"
            }
          ],
          "stateMutability": "nonpayable",
          "type": "function",
          "name": "increaseAllowance",
          "outputs": [
            {
              "internalType": "bool",
              "name": "",
              "type": "bool"
            }
          ]
        },
        {
          "inputs": [],
          "stateMutability": "view",
          "type": "function",
          "name": "name",
          "outputs": [
            {
              "internalType": "string",
              "name": "",
              "type": "string"
            }
          ]
        },
        {
          "inputs": [],
          "stateMutability": "view",
          "type": "function",
          "name": "symbol",
          "outputs": [
            {
              "internalType": "string",
              "name": "",
              "type": "string"
            }
          ]
        },
        {
          "inputs": [],
          "stateMutability": "view",
          "type": "function",
          "name": "totalSupply",
          "outputs": [
            {
              "internalType": "uint256",
              "name": "",
              "type": "uint256"
            }
          ]
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "to",
              "type": "address"
            },
            {
              "internalType": "uint256",
              "name": "amount",
              "type": "uint256"
            }
          ],
          "stateMutability": "nonpayable",
          "type": "function",
          "name": "transfer",
          "outputs": [
            {
              "internalType": "bool",
              "name": "",
              "type": "bool"
            }
          ]
        },
        {
          "inputs": [
            {
              "internalType": "address",
              "name": "from",
              "type": "address"
            },
            {
              "internalType": "address",
              "name": "to",
              "type": "address"
            },
            {
              "internalType": "uint256",
              "name": "amount",
              "type": "uint256"
            }
          ],
          "stateMutability": "nonpayable",
          "type": "function",
          "name": "transferFrom",
          "outputs": [
            {
              "internalType": "bool",
              "name": "",
              "type": "bool"
            }
          ]
        }
      ],
      "devdoc": {
        "kind": "dev",
        "methods": {
          "allowance(address,address)": {
            "details": "See {IERC20-allowance}."
          },
          "approve(address,uint256)": {
            "details": "See {IERC20-approve}. NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on `transferFrom`. This is semantically equivalent to an infinite approval. Requirements: - `spender` cannot be the zero address."
          },
          "balanceOf(address)": {
            "details": "See {IERC20-balanceOf}."
          },
          "constructor": {
            "details": "Sets the values for {name} and {symbol}. The default value of {decimals} is 18. To select a different value for {decimals} you should overload it. All two of these values are immutable: they can only be set once during construction."
          },
          "decimals()": {
            "details": "Returns the number of decimals used to get its user representation. For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5.05` (`505 / 10 ** 2`). Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei. This is the value {ERC20} uses, unless this function is overridden; NOTE: This information is only used for _display_ purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}."
          },
          "decreaseAllowance(address,uint256)": {
            "details": "Atomically decreases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address. - `spender` must have allowance for the caller of at least `subtractedValue`."
          },
          "increaseAllowance(address,uint256)": {
            "details": "Atomically increases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address."
          },
          "name()": {
            "details": "Returns the name of the token."
          },
          "symbol()": {
            "details": "Returns the symbol of the token, usually a shorter version of the name."
          },
          "totalSupply()": {
            "details": "See {IERC20-totalSupply}."
          },
          "transfer(address,uint256)": {
            "details": "See {IERC20-transfer}. Requirements: - `to` cannot be the zero address. - the caller must have a balance of at least `amount`."
          },
          "transferFrom(address,address,uint256)": {
            "details": "See {IERC20-transferFrom}. Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20}. NOTE: Does not update the allowance if the current allowance is the maximum `uint256`. Requirements: - `from` and `to` cannot be the zero address. - `from` must have a balance of at least `amount`. - the caller must have allowance for ``from``'s tokens of at least `amount`."
          }
        },
        "version": 1
      },
      "userdoc": {
        "kind": "user",
        "methods": {},
        "version": 1
      }
    },
    "settings": {
      "remappings": [
        "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
        "@uniswap/v3-core/=lib_uniswap/v3-core/",
        "@uniswap/v3-periphery/=lib_uniswap/v3-periphery/",
        "ds-test/=lib/forge-std/lib/ds-test/src/",
        "forge-std/=lib/forge-std/src/",
        "openzeppelin-contracts/=lib/openzeppelin-contracts/",
        "v3-core/=lib_uniswap/v3-core/",
        "v3-periphery/libraries/=lib_uniswap/v3-periphery/contracts/libraries/"
      ],
      "optimizer": {
        "runs": 999999999,
        "details": {
          "peephole": true,
          "inliner": true,
          "jumpdestRemover": true,
          "orderLiterals": true,
          "deduplicate": true,
          "cse": true,
          "constantOptimizer": true,
          "yul": true,
          "yulDetails": {
            "stackAllocation": true,
            "optimizerSteps": "dhfoD[xarrscLMcCTU]uljmul:fDnTOcmu"
          }
        }
      },
      "metadata": {
        "bytecodeHash": "ipfs"
      },
      "compilationTarget": {
        "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol": "ERC20"
      },
      "libraries": {}
    },
    "sources": {
      "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol": {
        "keccak256": "0x4ffc0547c02ad22925310c585c0f166f8759e2648a09e9b489100c42f15dd98d",
        "urls": [
          "bzz-raw://15f52f51413a9de1ff191e2f6367c62178e1df7806d7880fe857a98b0b66253d",
          "dweb:/ipfs/QmaQG1fwfgUt5E9nu2cccFiV47B2V78MM1tCy1qB7n4MsH"
        ],
        "license": "MIT"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
        "keccak256": "0x9750c6b834f7b43000631af5cc30001c5f547b3ceb3635488f140f60e897ea6b",
        "urls": [
          "bzz-raw://5a7d5b1ef5d8d5889ad2ed89d8619c09383b80b72ab226e0fe7bde1636481e34",
          "dweb:/ipfs/QmebXWgtEfumQGBdVeM6c71McLixYXQP5Bk6kKXuoY4Bmr"
        ],
        "license": "MIT"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
        "keccak256": "0x8de418a5503946cabe331f35fe242d3201a73f67f77aaeb7110acb1f30423aca",
        "urls": [
          "bzz-raw://5a376d3dda2cb70536c0a45c208b29b34ac560c4cb4f513a42079f96ba47d2dd",
          "dweb:/ipfs/QmZQg6gn1sUpM8wHzwNvSnihumUCAhxD119MpXeKp8B9s8"
        ],
        "license": "MIT"
      },
      "lib/openzeppelin-contracts/contracts/utils/Context.sol": {
        "keccak256": "0xe2e337e6dde9ef6b680e07338c493ebea1b5fd09b43424112868e9cc1706bca7",
        "urls": [
          "bzz-raw://6df0ddf21ce9f58271bdfaa85cde98b200ef242a05a3f85c2bc10a8294800a92",
          "dweb:/ipfs/QmRK2Y5Yc6BK7tGKkgsgn3aJEQGi5aakeSPZvS65PV8Xp3"
        ],
        "license": "MIT"
      }
    },
    "version": 1
  },
  "ast": {
    "absolutePath": "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol",
    "id": 43479,
    "exportedSymbols": {
      "Context": [
        43777
      ],
      "ERC20": [
        43478
      ],
      "IERC20": [
        43556
      ],
      "IERC20Metadata": [
        43581
      ]
    },
    "nodeType": "SourceUnit",
    "src": "105:12907:19",
    "nodes": [
      {
        "id": 42893,
        "nodeType": "PragmaDirective",
        "src": "105:23:19",
        "nodes": [],
        "literals": [
          "solidity",
          "^",
          "0.8",
          ".0"
        ]
      },
      {
        "id": 42894,
        "nodeType": "ImportDirective",
        "src": "130:22:19",
        "nodes": [],
        "absolutePath": "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol",
        "file": "./IERC20.sol",
        "nameLocation": "-1:-1:-1",
        "scope": 43479,
        "sourceUnit": 43557,
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "id": 42895,
        "nodeType": "ImportDirective",
        "src": "153:41:19",
        "nodes": [],
        "absolutePath": "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol",
        "file": "./extensions/IERC20Metadata.sol",
        "nameLocation": "-1:-1:-1",
        "scope": 43479,
        "sourceUnit": 43582,
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "id": 42896,
        "nodeType": "ImportDirective",
        "src": "195:33:19",
        "nodes": [],
        "absolutePath": "lib/openzeppelin-contracts/contracts/utils/Context.sol",
        "file": "../../utils/Context.sol",
        "nameLocation": "-1:-1:-1",
        "scope": 43479,
        "sourceUnit": 43778,
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "id": 43478,
        "nodeType": "ContractDefinition",
        "src": "1401:11610:19",
        "nodes": [
          {
            "id": 42907,
            "nodeType": "VariableDeclaration",
            "src": "1457:45:19",
            "nodes": [],
            "constant": false,
            "mutability": "mutable",
            "name": "_balances",
            "nameLocation": "1493:9:19",
            "scope": 43478,
            "stateVariable": true,
            "storageLocation": "default",
            "typeDescriptions": {
              "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
              "typeString": "mapping(address => uint256)"
            },
            "typeName": {
              "id": 42906,
              "keyName": "",
              "keyNameLocation": "-1:-1:-1",
              "keyType": {
                "id": 42904,
                "name": "address",
                "nodeType": "ElementaryTypeName",
                "src": "1465:7:19",
                "typeDescriptions": {
                  "typeIdentifier": "t_address",
                  "typeString": "address"
                }
              },
              "nodeType": "Mapping",
              "src": "1457:27:19",
              "typeDescriptions": {
                "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                "typeString": "mapping(address => uint256)"
              },
              "valueName": "",
              "valueNameLocation": "-1:-1:-1",
              "valueType": {
                "id": 42905,
                "name": "uint256",
                "nodeType": "ElementaryTypeName",
                "src": "1476:7:19",
                "typeDescriptions": {
                  "typeIdentifier": "t_uint256",
                  "typeString": "uint256"
                }
              }
            },
            "visibility": "private"
          },
          {
            "id": 42913,
            "nodeType": "VariableDeclaration",
            "src": "1509:67:19",
            "nodes": [],
            "constant": false,
            "mutability": "mutable",
            "name": "_allowances",
            "nameLocation": "1565:11:19",
            "scope": 43478,
            "stateVariable": true,
            "storageLocation": "default",
            "typeDescriptions": {
              "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$",
              "typeString": "mapping(address => mapping(address => uint256))"
            },
            "typeName": {
              "id": 42912,
              "keyName": "",
              "keyNameLocation": "-1:-1:-1",
              "keyType": {
                "id": 42908,
                "name": "address",
                "nodeType": "ElementaryTypeName",
                "src": "1517:7:19",
                "typeDescriptions": {
                  "typeIdentifier": "t_address",
                  "typeString": "address"
                }
              },
              "nodeType": "Mapping",
              "src": "1509:47:19",
              "typeDescriptions": {
                "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$",
                "typeString": "mapping(address => mapping(address => uint256))"
              },
              "valueName": "",
              "valueNameLocation": "-1:-1:-1",
              "valueType": {
                "id": 42911,
                "keyName": "",
                "keyNameLocation": "-1:-1:-1",
                "keyType": {
                  "id": 42909,
                  "name": "address",
                  "nodeType": "ElementaryTypeName",
                  "src": "1536:7:19",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  }
                },
                "nodeType": "Mapping",
                "src": "1528:27:19",
                "typeDescriptions": {
                  "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                  "typeString": "mapping(address => uint256)"
                },
                "valueName": "",
                "valueNameLocation": "-1:-1:-1",
                "valueType": {
                  "id": 42910,
                  "name": "uint256",
                  "nodeType": "ElementaryTypeName",
                  "src": "1547:7:19",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  }
                }
              }
            },
            "visibility": "private"
          },
          {
            "id": 42915,
            "nodeType": "VariableDeclaration",
            "src": "1583:28:19",
            "nodes": [],
            "constant": false,
            "mutability": "mutable",
            "name": "_totalSupply",
            "nameLocation": "1599:12:19",
            "scope": 43478,
            "stateVariable": true,
            "storageLocation": "default",
            "typeDescriptions": {
              "typeIdentifier": "t_uint256",
              "typeString": "uint256"
            },
            "typeName": {
              "id": 42914,
              "name": "uint256",
              "nodeType": "ElementaryTypeName",
              "src": "1583:7:19",
              "typeDescriptions": {
                "typeIdentifier": "t_uint256",
                "typeString": "uint256"
              }
            },
            "visibility": "private"
          },
          {
            "id": 42917,
            "nodeType": "VariableDeclaration",
            "src": "1618:20:19",
            "nodes": [],
            "constant": false,
            "mutability": "mutable",
            "name": "_name",
            "nameLocation": "1633:5:19",
            "scope": 43478,
            "stateVariable": true,
            "storageLocation": "default",
            "typeDescriptions": {
              "typeIdentifier": "t_string_storage",
              "typeString": "string"
            },
            "typeName": {
              "id": 42916,
              "name": "string",
              "nodeType": "ElementaryTypeName",
              "src": "1618:6:19",
              "typeDescriptions": {
                "typeIdentifier": "t_string_storage_ptr",
                "typeString": "string"
              }
            },
            "visibility": "private"
          },
          {
            "id": 42919,
            "nodeType": "VariableDeclaration",
            "src": "1644:22:19",
            "nodes": [],
            "constant": false,
            "mutability": "mutable",
            "name": "_symbol",
            "nameLocation": "1659:7:19",
            "scope": 43478,
            "stateVariable": true,
            "storageLocation": "default",
            "typeDescriptions": {
              "typeIdentifier": "t_string_storage",
              "typeString": "string"
            },
            "typeName": {
              "id": 42918,
              "name": "string",
              "nodeType": "ElementaryTypeName",
              "src": "1644:6:19",
              "typeDescriptions": {
                "typeIdentifier": "t_string_storage_ptr",
                "typeString": "string"
              }
            },
            "visibility": "private"
          },
          {
            "id": 42936,
            "nodeType": "FunctionDefinition",
            "src": "1976:113:19",
            "nodes": [],
            "body": {
              "id": 42935,
              "nodeType": "Block",
              "src": "2032:57:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "id": 42929,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "lValueRequested": false,
                    "leftHandSide": {
                      "id": 42927,
                      "name": "_name",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42917,
                      "src": "2042:5:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_string_storage",
                        "typeString": "string storage ref"
                      }
                    },
                    "nodeType": "Assignment",
                    "operator": "=",
                    "rightHandSide": {
                      "id": 42928,
                      "name": "name_",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42922,
                      "src": "2050:5:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_string_memory_ptr",
                        "typeString": "string memory"
                      }
                    },
                    "src": "2042:13:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_string_storage",
                      "typeString": "string storage ref"
                    }
                  },
                  "id": 42930,
                  "nodeType": "ExpressionStatement",
                  "src": "2042:13:19"
                },
                {
                  "expression": {
                    "id": 42933,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "lValueRequested": false,
                    "leftHandSide": {
                      "id": 42931,
                      "name": "_symbol",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42919,
                      "src": "2065:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_string_storage",
                        "typeString": "string storage ref"
                      }
                    },
                    "nodeType": "Assignment",
                    "operator": "=",
                    "rightHandSide": {
                      "id": 42932,
                      "name": "symbol_",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42924,
                      "src": "2075:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_string_memory_ptr",
                        "typeString": "string memory"
                      }
                    },
                    "src": "2065:17:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_string_storage",
                      "typeString": "string storage ref"
                    }
                  },
                  "id": 42934,
                  "nodeType": "ExpressionStatement",
                  "src": "2065:17:19"
                }
              ]
            },
            "documentation": {
              "id": 42920,
              "nodeType": "StructuredDocumentation",
              "src": "1673:298:19",
              "text": " @dev Sets the values for {name} and {symbol}.\n The default value of {decimals} is 18. To select a different value for\n {decimals} you should overload it.\n All two of these values are immutable: they can only be set once during\n construction."
            },
            "implemented": true,
            "kind": "constructor",
            "modifiers": [],
            "name": "",
            "nameLocation": "-1:-1:-1",
            "parameters": {
              "id": 42925,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42922,
                  "mutability": "mutable",
                  "name": "name_",
                  "nameLocation": "2002:5:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 42936,
                  "src": "1988:19:19",
                  "stateVariable": false,
                  "storageLocation": "memory",
                  "typeDescriptions": {
                    "typeIdentifier": "t_string_memory_ptr",
                    "typeString": "string"
                  },
                  "typeName": {
                    "id": 42921,
                    "name": "string",
                    "nodeType": "ElementaryTypeName",
                    "src": "1988:6:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_string_storage_ptr",
                      "typeString": "string"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 42924,
                  "mutability": "mutable",
                  "name": "symbol_",
                  "nameLocation": "2023:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 42936,
                  "src": "2009:21:19",
                  "stateVariable": false,
                  "storageLocation": "memory",
                  "typeDescriptions": {
                    "typeIdentifier": "t_string_memory_ptr",
                    "typeString": "string"
                  },
                  "typeName": {
                    "id": 42923,
                    "name": "string",
                    "nodeType": "ElementaryTypeName",
                    "src": "2009:6:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_string_storage_ptr",
                      "typeString": "string"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "1987:44:19"
            },
            "returnParameters": {
              "id": 42926,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "2032:0:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": false,
            "visibility": "public"
          },
          {
            "id": 42946,
            "nodeType": "FunctionDefinition",
            "src": "2154:98:19",
            "nodes": [],
            "body": {
              "id": 42945,
              "nodeType": "Block",
              "src": "2223:29:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "id": 42943,
                    "name": "_name",
                    "nodeType": "Identifier",
                    "overloadedDeclarations": [],
                    "referencedDeclaration": 42917,
                    "src": "2240:5:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_string_storage",
                      "typeString": "string storage ref"
                    }
                  },
                  "functionReturnParameters": 42942,
                  "id": 42944,
                  "nodeType": "Return",
                  "src": "2233:12:19"
                }
              ]
            },
            "baseFunctions": [
              43568
            ],
            "documentation": {
              "id": 42937,
              "nodeType": "StructuredDocumentation",
              "src": "2095:54:19",
              "text": " @dev Returns the name of the token."
            },
            "functionSelector": "06fdde03",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "name",
            "nameLocation": "2163:4:19",
            "overrides": {
              "id": 42939,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "2190:8:19"
            },
            "parameters": {
              "id": 42938,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "2167:2:19"
            },
            "returnParameters": {
              "id": 42942,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42941,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 42946,
                  "src": "2208:13:19",
                  "stateVariable": false,
                  "storageLocation": "memory",
                  "typeDescriptions": {
                    "typeIdentifier": "t_string_memory_ptr",
                    "typeString": "string"
                  },
                  "typeName": {
                    "id": 42940,
                    "name": "string",
                    "nodeType": "ElementaryTypeName",
                    "src": "2208:6:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_string_storage_ptr",
                      "typeString": "string"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "2207:15:19"
            },
            "scope": 43478,
            "stateMutability": "view",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 42956,
            "nodeType": "FunctionDefinition",
            "src": "2365:102:19",
            "nodes": [],
            "body": {
              "id": 42955,
              "nodeType": "Block",
              "src": "2436:31:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "id": 42953,
                    "name": "_symbol",
                    "nodeType": "Identifier",
                    "overloadedDeclarations": [],
                    "referencedDeclaration": 42919,
                    "src": "2453:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_string_storage",
                      "typeString": "string storage ref"
                    }
                  },
                  "functionReturnParameters": 42952,
                  "id": 42954,
                  "nodeType": "Return",
                  "src": "2446:14:19"
                }
              ]
            },
            "baseFunctions": [
              43574
            ],
            "documentation": {
              "id": 42947,
              "nodeType": "StructuredDocumentation",
              "src": "2258:102:19",
              "text": " @dev Returns the symbol of the token, usually a shorter version of the\n name."
            },
            "functionSelector": "95d89b41",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "symbol",
            "nameLocation": "2374:6:19",
            "overrides": {
              "id": 42949,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "2403:8:19"
            },
            "parameters": {
              "id": 42948,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "2380:2:19"
            },
            "returnParameters": {
              "id": 42952,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42951,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 42956,
                  "src": "2421:13:19",
                  "stateVariable": false,
                  "storageLocation": "memory",
                  "typeDescriptions": {
                    "typeIdentifier": "t_string_memory_ptr",
                    "typeString": "string"
                  },
                  "typeName": {
                    "id": 42950,
                    "name": "string",
                    "nodeType": "ElementaryTypeName",
                    "src": "2421:6:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_string_storage_ptr",
                      "typeString": "string"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "2420:15:19"
            },
            "scope": 43478,
            "stateMutability": "view",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 42966,
            "nodeType": "FunctionDefinition",
            "src": "3091:91:19",
            "nodes": [],
            "body": {
              "id": 42965,
              "nodeType": "Block",
              "src": "3156:26:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "hexValue": "3138",
                    "id": 42963,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": true,
                    "kind": "number",
                    "lValueRequested": false,
                    "nodeType": "Literal",
                    "src": "3173:2:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_rational_18_by_1",
                      "typeString": "int_const 18"
                    },
                    "value": "18"
                  },
                  "functionReturnParameters": 42962,
                  "id": 42964,
                  "nodeType": "Return",
                  "src": "3166:9:19"
                }
              ]
            },
            "baseFunctions": [
              43580
            ],
            "documentation": {
              "id": 42957,
              "nodeType": "StructuredDocumentation",
              "src": "2473:613:19",
              "text": " @dev Returns the number of decimals used to get its user representation.\n For example, if `decimals` equals `2`, a balance of `505` tokens should\n be displayed to a user as `5.05` (`505 / 10 ** 2`).\n Tokens usually opt for a value of 18, imitating the relationship between\n Ether and Wei. This is the value {ERC20} uses, unless this function is\n overridden;\n NOTE: This information is only used for _display_ purposes: it in\n no way affects any of the arithmetic of the contract, including\n {IERC20-balanceOf} and {IERC20-transfer}."
            },
            "functionSelector": "313ce567",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "decimals",
            "nameLocation": "3100:8:19",
            "overrides": {
              "id": 42959,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "3131:8:19"
            },
            "parameters": {
              "id": 42958,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "3108:2:19"
            },
            "returnParameters": {
              "id": 42962,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42961,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 42966,
                  "src": "3149:5:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint8",
                    "typeString": "uint8"
                  },
                  "typeName": {
                    "id": 42960,
                    "name": "uint8",
                    "nodeType": "ElementaryTypeName",
                    "src": "3149:5:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint8",
                      "typeString": "uint8"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "3148:7:19"
            },
            "scope": 43478,
            "stateMutability": "view",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 42976,
            "nodeType": "FunctionDefinition",
            "src": "3242:106:19",
            "nodes": [],
            "body": {
              "id": 42975,
              "nodeType": "Block",
              "src": "3312:36:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "id": 42973,
                    "name": "_totalSupply",
                    "nodeType": "Identifier",
                    "overloadedDeclarations": [],
                    "referencedDeclaration": 42915,
                    "src": "3329:12:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "functionReturnParameters": 42972,
                  "id": 42974,
                  "nodeType": "Return",
                  "src": "3322:19:19"
                }
              ]
            },
            "baseFunctions": [
              43505
            ],
            "documentation": {
              "id": 42967,
              "nodeType": "StructuredDocumentation",
              "src": "3188:49:19",
              "text": " @dev See {IERC20-totalSupply}."
            },
            "functionSelector": "18160ddd",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "totalSupply",
            "nameLocation": "3251:11:19",
            "overrides": {
              "id": 42969,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "3285:8:19"
            },
            "parameters": {
              "id": 42968,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "3262:2:19"
            },
            "returnParameters": {
              "id": 42972,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42971,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 42976,
                  "src": "3303:7:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 42970,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "3303:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "3302:9:19"
            },
            "scope": 43478,
            "stateMutability": "view",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 42990,
            "nodeType": "FunctionDefinition",
            "src": "3406:125:19",
            "nodes": [],
            "body": {
              "id": 42989,
              "nodeType": "Block",
              "src": "3489:42:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "baseExpression": {
                      "id": 42985,
                      "name": "_balances",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42907,
                      "src": "3506:9:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                        "typeString": "mapping(address => uint256)"
                      }
                    },
                    "id": 42987,
                    "indexExpression": {
                      "id": 42986,
                      "name": "account",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42979,
                      "src": "3516:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      }
                    },
                    "isConstant": false,
                    "isLValue": true,
                    "isPure": false,
                    "lValueRequested": false,
                    "nodeType": "IndexAccess",
                    "src": "3506:18:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "functionReturnParameters": 42984,
                  "id": 42988,
                  "nodeType": "Return",
                  "src": "3499:25:19"
                }
              ]
            },
            "baseFunctions": [
              43513
            ],
            "documentation": {
              "id": 42977,
              "nodeType": "StructuredDocumentation",
              "src": "3354:47:19",
              "text": " @dev See {IERC20-balanceOf}."
            },
            "functionSelector": "70a08231",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "balanceOf",
            "nameLocation": "3415:9:19",
            "overrides": {
              "id": 42981,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "3462:8:19"
            },
            "parameters": {
              "id": 42980,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42979,
                  "mutability": "mutable",
                  "name": "account",
                  "nameLocation": "3433:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 42990,
                  "src": "3425:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 42978,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "3425:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "3424:17:19"
            },
            "returnParameters": {
              "id": 42984,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42983,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 42990,
                  "src": "3480:7:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 42982,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "3480:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "3479:9:19"
            },
            "scope": 43478,
            "stateMutability": "view",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 43015,
            "nodeType": "FunctionDefinition",
            "src": "3727:189:19",
            "nodes": [],
            "body": {
              "id": 43014,
              "nodeType": "Block",
              "src": "3812:104:19",
              "nodes": [],
              "statements": [
                {
                  "assignments": [
                    43002
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43002,
                      "mutability": "mutable",
                      "name": "owner",
                      "nameLocation": "3830:5:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43014,
                      "src": "3822:13:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      },
                      "typeName": {
                        "id": 43001,
                        "name": "address",
                        "nodeType": "ElementaryTypeName",
                        "src": "3822:7:19",
                        "stateMutability": "nonpayable",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43005,
                  "initialValue": {
                    "arguments": [],
                    "expression": {
                      "argumentTypes": [],
                      "id": 43003,
                      "name": "_msgSender",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43767,
                      "src": "3838:10:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_view$__$returns$_t_address_$",
                        "typeString": "function () view returns (address)"
                      }
                    },
                    "id": 43004,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "3838:12:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "3822:28:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43007,
                        "name": "owner",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43002,
                        "src": "3870:5:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43008,
                        "name": "to",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 42993,
                        "src": "3877:2:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43009,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 42995,
                        "src": "3881:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43006,
                      "name": "_transfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43238,
                      "src": "3860:9:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43010,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "3860:28:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43011,
                  "nodeType": "ExpressionStatement",
                  "src": "3860:28:19"
                },
                {
                  "expression": {
                    "hexValue": "74727565",
                    "id": 43012,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": true,
                    "kind": "bool",
                    "lValueRequested": false,
                    "nodeType": "Literal",
                    "src": "3905:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    },
                    "value": "true"
                  },
                  "functionReturnParameters": 43000,
                  "id": 43013,
                  "nodeType": "Return",
                  "src": "3898:11:19"
                }
              ]
            },
            "baseFunctions": [
              43523
            ],
            "documentation": {
              "id": 42991,
              "nodeType": "StructuredDocumentation",
              "src": "3537:185:19",
              "text": " @dev See {IERC20-transfer}.\n Requirements:\n - `to` cannot be the zero address.\n - the caller must have a balance of at least `amount`."
            },
            "functionSelector": "a9059cbb",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "transfer",
            "nameLocation": "3736:8:19",
            "overrides": {
              "id": 42997,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "3788:8:19"
            },
            "parameters": {
              "id": 42996,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42993,
                  "mutability": "mutable",
                  "name": "to",
                  "nameLocation": "3753:2:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43015,
                  "src": "3745:10:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 42992,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "3745:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 42995,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "3765:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43015,
                  "src": "3757:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 42994,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "3757:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "3744:28:19"
            },
            "returnParameters": {
              "id": 43000,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 42999,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 43015,
                  "src": "3806:4:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 42998,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "3806:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "3805:6:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 43033,
            "nodeType": "FunctionDefinition",
            "src": "3974:149:19",
            "nodes": [],
            "body": {
              "id": 43032,
              "nodeType": "Block",
              "src": "4072:51:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "baseExpression": {
                      "baseExpression": {
                        "id": 43026,
                        "name": "_allowances",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 42913,
                        "src": "4089:11:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$",
                          "typeString": "mapping(address => mapping(address => uint256))"
                        }
                      },
                      "id": 43028,
                      "indexExpression": {
                        "id": 43027,
                        "name": "owner",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43018,
                        "src": "4101:5:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      "isConstant": false,
                      "isLValue": true,
                      "isPure": false,
                      "lValueRequested": false,
                      "nodeType": "IndexAccess",
                      "src": "4089:18:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                        "typeString": "mapping(address => uint256)"
                      }
                    },
                    "id": 43030,
                    "indexExpression": {
                      "id": 43029,
                      "name": "spender",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43020,
                      "src": "4108:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      }
                    },
                    "isConstant": false,
                    "isLValue": true,
                    "isPure": false,
                    "lValueRequested": false,
                    "nodeType": "IndexAccess",
                    "src": "4089:27:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "functionReturnParameters": 43025,
                  "id": 43031,
                  "nodeType": "Return",
                  "src": "4082:34:19"
                }
              ]
            },
            "baseFunctions": [
              43533
            ],
            "documentation": {
              "id": 43016,
              "nodeType": "StructuredDocumentation",
              "src": "3922:47:19",
              "text": " @dev See {IERC20-allowance}."
            },
            "functionSelector": "dd62ed3e",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "allowance",
            "nameLocation": "3983:9:19",
            "overrides": {
              "id": 43022,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "4045:8:19"
            },
            "parameters": {
              "id": 43021,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43018,
                  "mutability": "mutable",
                  "name": "owner",
                  "nameLocation": "4001:5:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43033,
                  "src": "3993:13:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43017,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "3993:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43020,
                  "mutability": "mutable",
                  "name": "spender",
                  "nameLocation": "4016:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43033,
                  "src": "4008:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43019,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "4008:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "3992:32:19"
            },
            "returnParameters": {
              "id": 43025,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43024,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 43033,
                  "src": "4063:7:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43023,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "4063:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "4062:9:19"
            },
            "scope": 43478,
            "stateMutability": "view",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 43058,
            "nodeType": "FunctionDefinition",
            "src": "4431:197:19",
            "nodes": [],
            "body": {
              "id": 43057,
              "nodeType": "Block",
              "src": "4520:108:19",
              "nodes": [],
              "statements": [
                {
                  "assignments": [
                    43045
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43045,
                      "mutability": "mutable",
                      "name": "owner",
                      "nameLocation": "4538:5:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43057,
                      "src": "4530:13:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      },
                      "typeName": {
                        "id": 43044,
                        "name": "address",
                        "nodeType": "ElementaryTypeName",
                        "src": "4530:7:19",
                        "stateMutability": "nonpayable",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43048,
                  "initialValue": {
                    "arguments": [],
                    "expression": {
                      "argumentTypes": [],
                      "id": 43046,
                      "name": "_msgSender",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43767,
                      "src": "4546:10:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_view$__$returns$_t_address_$",
                        "typeString": "function () view returns (address)"
                      }
                    },
                    "id": 43047,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "4546:12:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "4530:28:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43050,
                        "name": "owner",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43045,
                        "src": "4577:5:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43051,
                        "name": "spender",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43036,
                        "src": "4584:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43052,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43038,
                        "src": "4593:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43049,
                      "name": "_approve",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43412,
                      "src": "4568:8:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43053,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "4568:32:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43054,
                  "nodeType": "ExpressionStatement",
                  "src": "4568:32:19"
                },
                {
                  "expression": {
                    "hexValue": "74727565",
                    "id": 43055,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": true,
                    "kind": "bool",
                    "lValueRequested": false,
                    "nodeType": "Literal",
                    "src": "4617:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    },
                    "value": "true"
                  },
                  "functionReturnParameters": 43043,
                  "id": 43056,
                  "nodeType": "Return",
                  "src": "4610:11:19"
                }
              ]
            },
            "baseFunctions": [
              43543
            ],
            "documentation": {
              "id": 43034,
              "nodeType": "StructuredDocumentation",
              "src": "4129:297:19",
              "text": " @dev See {IERC20-approve}.\n NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n `transferFrom`. This is semantically equivalent to an infinite approval.\n Requirements:\n - `spender` cannot be the zero address."
            },
            "functionSelector": "095ea7b3",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "approve",
            "nameLocation": "4440:7:19",
            "overrides": {
              "id": 43040,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "4496:8:19"
            },
            "parameters": {
              "id": 43039,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43036,
                  "mutability": "mutable",
                  "name": "spender",
                  "nameLocation": "4456:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43058,
                  "src": "4448:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43035,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "4448:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43038,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "4473:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43058,
                  "src": "4465:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43037,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "4465:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "4447:33:19"
            },
            "returnParameters": {
              "id": 43043,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43042,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 43058,
                  "src": "4514:4:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 43041,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "4514:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "4513:6:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 43091,
            "nodeType": "FunctionDefinition",
            "src": "5190:286:19",
            "nodes": [],
            "body": {
              "id": 43090,
              "nodeType": "Block",
              "src": "5323:153:19",
              "nodes": [],
              "statements": [
                {
                  "assignments": [
                    43072
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43072,
                      "mutability": "mutable",
                      "name": "spender",
                      "nameLocation": "5341:7:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43090,
                      "src": "5333:15:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      },
                      "typeName": {
                        "id": 43071,
                        "name": "address",
                        "nodeType": "ElementaryTypeName",
                        "src": "5333:7:19",
                        "stateMutability": "nonpayable",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43075,
                  "initialValue": {
                    "arguments": [],
                    "expression": {
                      "argumentTypes": [],
                      "id": 43073,
                      "name": "_msgSender",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43767,
                      "src": "5351:10:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_view$__$returns$_t_address_$",
                        "typeString": "function () view returns (address)"
                      }
                    },
                    "id": 43074,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "5351:12:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "5333:30:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43077,
                        "name": "from",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43061,
                        "src": "5389:4:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43078,
                        "name": "spender",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43072,
                        "src": "5395:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43079,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43065,
                        "src": "5404:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43076,
                      "name": "_spendAllowance",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43455,
                      "src": "5373:15:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43080,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "5373:38:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43081,
                  "nodeType": "ExpressionStatement",
                  "src": "5373:38:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43083,
                        "name": "from",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43061,
                        "src": "5431:4:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43084,
                        "name": "to",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43063,
                        "src": "5437:2:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43085,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43065,
                        "src": "5441:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43082,
                      "name": "_transfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43238,
                      "src": "5421:9:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43086,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "5421:27:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43087,
                  "nodeType": "ExpressionStatement",
                  "src": "5421:27:19"
                },
                {
                  "expression": {
                    "hexValue": "74727565",
                    "id": 43088,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": true,
                    "kind": "bool",
                    "lValueRequested": false,
                    "nodeType": "Literal",
                    "src": "5465:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    },
                    "value": "true"
                  },
                  "functionReturnParameters": 43070,
                  "id": 43089,
                  "nodeType": "Return",
                  "src": "5458:11:19"
                }
              ]
            },
            "baseFunctions": [
              43555
            ],
            "documentation": {
              "id": 43059,
              "nodeType": "StructuredDocumentation",
              "src": "4634:551:19",
              "text": " @dev See {IERC20-transferFrom}.\n Emits an {Approval} event indicating the updated allowance. This is not\n required by the EIP. See the note at the beginning of {ERC20}.\n NOTE: Does not update the allowance if the current allowance\n is the maximum `uint256`.\n Requirements:\n - `from` and `to` cannot be the zero address.\n - `from` must have a balance of at least `amount`.\n - the caller must have allowance for ``from``'s tokens of at least\n `amount`."
            },
            "functionSelector": "23b872dd",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "transferFrom",
            "nameLocation": "5199:12:19",
            "overrides": {
              "id": 43067,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "5299:8:19"
            },
            "parameters": {
              "id": 43066,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43061,
                  "mutability": "mutable",
                  "name": "from",
                  "nameLocation": "5229:4:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43091,
                  "src": "5221:12:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43060,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "5221:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43063,
                  "mutability": "mutable",
                  "name": "to",
                  "nameLocation": "5251:2:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43091,
                  "src": "5243:10:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43062,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "5243:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43065,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "5271:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43091,
                  "src": "5263:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43064,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "5263:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "5211:72:19"
            },
            "returnParameters": {
              "id": 43070,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43069,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 43091,
                  "src": "5317:4:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 43068,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "5317:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "5316:6:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 43120,
            "nodeType": "FunctionDefinition",
            "src": "5871:234:19",
            "nodes": [],
            "body": {
              "id": 43119,
              "nodeType": "Block",
              "src": "5965:140:19",
              "nodes": [],
              "statements": [
                {
                  "assignments": [
                    43102
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43102,
                      "mutability": "mutable",
                      "name": "owner",
                      "nameLocation": "5983:5:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43119,
                      "src": "5975:13:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      },
                      "typeName": {
                        "id": 43101,
                        "name": "address",
                        "nodeType": "ElementaryTypeName",
                        "src": "5975:7:19",
                        "stateMutability": "nonpayable",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43105,
                  "initialValue": {
                    "arguments": [],
                    "expression": {
                      "argumentTypes": [],
                      "id": 43103,
                      "name": "_msgSender",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43767,
                      "src": "5991:10:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_view$__$returns$_t_address_$",
                        "typeString": "function () view returns (address)"
                      }
                    },
                    "id": 43104,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "5991:12:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "5975:28:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43107,
                        "name": "owner",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43102,
                        "src": "6022:5:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43108,
                        "name": "spender",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43094,
                        "src": "6029:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "commonType": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        },
                        "id": 43114,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "arguments": [
                            {
                              "id": 43110,
                              "name": "owner",
                              "nodeType": "Identifier",
                              "overloadedDeclarations": [],
                              "referencedDeclaration": 43102,
                              "src": "6048:5:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_address",
                                "typeString": "address"
                              }
                            },
                            {
                              "id": 43111,
                              "name": "spender",
                              "nodeType": "Identifier",
                              "overloadedDeclarations": [],
                              "referencedDeclaration": 43094,
                              "src": "6055:7:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_address",
                                "typeString": "address"
                              }
                            }
                          ],
                          "expression": {
                            "argumentTypes": [
                              {
                                "typeIdentifier": "t_address",
                                "typeString": "address"
                              },
                              {
                                "typeIdentifier": "t_address",
                                "typeString": "address"
                              }
                            ],
                            "id": 43109,
                            "name": "allowance",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43033,
                            "src": "6038:9:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_uint256_$",
                              "typeString": "function (address,address) view returns (uint256)"
                            }
                          },
                          "id": 43112,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": false,
                          "kind": "functionCall",
                          "lValueRequested": false,
                          "nameLocations": [],
                          "names": [],
                          "nodeType": "FunctionCall",
                          "src": "6038:25:19",
                          "tryCall": false,
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": "+",
                        "rightExpression": {
                          "id": 43113,
                          "name": "addedValue",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43096,
                          "src": "6066:10:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "6038:38:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43106,
                      "name": "_approve",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43412,
                      "src": "6013:8:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43115,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "6013:64:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43116,
                  "nodeType": "ExpressionStatement",
                  "src": "6013:64:19"
                },
                {
                  "expression": {
                    "hexValue": "74727565",
                    "id": 43117,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": true,
                    "kind": "bool",
                    "lValueRequested": false,
                    "nodeType": "Literal",
                    "src": "6094:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    },
                    "value": "true"
                  },
                  "functionReturnParameters": 43100,
                  "id": 43118,
                  "nodeType": "Return",
                  "src": "6087:11:19"
                }
              ]
            },
            "documentation": {
              "id": 43092,
              "nodeType": "StructuredDocumentation",
              "src": "5482:384:19",
              "text": " @dev Atomically increases the allowance granted to `spender` by the caller.\n This is an alternative to {approve} that can be used as a mitigation for\n problems described in {IERC20-approve}.\n Emits an {Approval} event indicating the updated allowance.\n Requirements:\n - `spender` cannot be the zero address."
            },
            "functionSelector": "39509351",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "increaseAllowance",
            "nameLocation": "5880:17:19",
            "parameters": {
              "id": 43097,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43094,
                  "mutability": "mutable",
                  "name": "spender",
                  "nameLocation": "5906:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43120,
                  "src": "5898:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43093,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "5898:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43096,
                  "mutability": "mutable",
                  "name": "addedValue",
                  "nameLocation": "5923:10:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43120,
                  "src": "5915:18:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43095,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "5915:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "5897:37:19"
            },
            "returnParameters": {
              "id": 43100,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43099,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 43120,
                  "src": "5959:4:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 43098,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "5959:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "5958:6:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 43161,
            "nodeType": "FunctionDefinition",
            "src": "6592:427:19",
            "nodes": [],
            "body": {
              "id": 43160,
              "nodeType": "Block",
              "src": "6691:328:19",
              "nodes": [],
              "statements": [
                {
                  "assignments": [
                    43131
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43131,
                      "mutability": "mutable",
                      "name": "owner",
                      "nameLocation": "6709:5:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43160,
                      "src": "6701:13:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      },
                      "typeName": {
                        "id": 43130,
                        "name": "address",
                        "nodeType": "ElementaryTypeName",
                        "src": "6701:7:19",
                        "stateMutability": "nonpayable",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43134,
                  "initialValue": {
                    "arguments": [],
                    "expression": {
                      "argumentTypes": [],
                      "id": 43132,
                      "name": "_msgSender",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43767,
                      "src": "6717:10:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_view$__$returns$_t_address_$",
                        "typeString": "function () view returns (address)"
                      }
                    },
                    "id": 43133,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "6717:12:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "6701:28:19"
                },
                {
                  "assignments": [
                    43136
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43136,
                      "mutability": "mutable",
                      "name": "currentAllowance",
                      "nameLocation": "6747:16:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43160,
                      "src": "6739:24:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      },
                      "typeName": {
                        "id": 43135,
                        "name": "uint256",
                        "nodeType": "ElementaryTypeName",
                        "src": "6739:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43141,
                  "initialValue": {
                    "arguments": [
                      {
                        "id": 43138,
                        "name": "owner",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43131,
                        "src": "6776:5:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43139,
                        "name": "spender",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43123,
                        "src": "6783:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      ],
                      "id": 43137,
                      "name": "allowance",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43033,
                      "src": "6766:9:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_uint256_$",
                        "typeString": "function (address,address) view returns (uint256)"
                      }
                    },
                    "id": 43140,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "6766:25:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "6739:52:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        },
                        "id": 43145,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43143,
                          "name": "currentAllowance",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43136,
                          "src": "6809:16:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": ">=",
                        "rightExpression": {
                          "id": 43144,
                          "name": "subtractedValue",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43125,
                          "src": "6829:15:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "6809:35:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a2064656372656173656420616c6c6f77616e63652062656c6f77207a65726f",
                        "id": 43146,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "6846:39:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_f8b476f7d28209d77d4a4ac1fe36b9f8259aa1bb6bddfa6e89de7e51615cf8a8",
                          "typeString": "literal_string \"ERC20: decreased allowance below zero\""
                        },
                        "value": "ERC20: decreased allowance below zero"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_f8b476f7d28209d77d4a4ac1fe36b9f8259aa1bb6bddfa6e89de7e51615cf8a8",
                          "typeString": "literal_string \"ERC20: decreased allowance below zero\""
                        }
                      ],
                      "id": 43142,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "6801:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43147,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "6801:85:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43148,
                  "nodeType": "ExpressionStatement",
                  "src": "6801:85:19"
                },
                {
                  "id": 43157,
                  "nodeType": "UncheckedBlock",
                  "src": "6896:95:19",
                  "statements": [
                    {
                      "expression": {
                        "arguments": [
                          {
                            "id": 43150,
                            "name": "owner",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43131,
                            "src": "6929:5:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_address",
                              "typeString": "address"
                            }
                          },
                          {
                            "id": 43151,
                            "name": "spender",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43123,
                            "src": "6936:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_address",
                              "typeString": "address"
                            }
                          },
                          {
                            "commonType": {
                              "typeIdentifier": "t_uint256",
                              "typeString": "uint256"
                            },
                            "id": 43154,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": false,
                            "lValueRequested": false,
                            "leftExpression": {
                              "id": 43152,
                              "name": "currentAllowance",
                              "nodeType": "Identifier",
                              "overloadedDeclarations": [],
                              "referencedDeclaration": 43136,
                              "src": "6945:16:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_uint256",
                                "typeString": "uint256"
                              }
                            },
                            "nodeType": "BinaryOperation",
                            "operator": "-",
                            "rightExpression": {
                              "id": 43153,
                              "name": "subtractedValue",
                              "nodeType": "Identifier",
                              "overloadedDeclarations": [],
                              "referencedDeclaration": 43125,
                              "src": "6964:15:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_uint256",
                                "typeString": "uint256"
                              }
                            },
                            "src": "6945:34:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_uint256",
                              "typeString": "uint256"
                            }
                          }
                        ],
                        "expression": {
                          "argumentTypes": [
                            {
                              "typeIdentifier": "t_address",
                              "typeString": "address"
                            },
                            {
                              "typeIdentifier": "t_address",
                              "typeString": "address"
                            },
                            {
                              "typeIdentifier": "t_uint256",
                              "typeString": "uint256"
                            }
                          ],
                          "id": 43149,
                          "name": "_approve",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43412,
                          "src": "6920:8:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                            "typeString": "function (address,address,uint256)"
                          }
                        },
                        "id": 43155,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "kind": "functionCall",
                        "lValueRequested": false,
                        "nameLocations": [],
                        "names": [],
                        "nodeType": "FunctionCall",
                        "src": "6920:60:19",
                        "tryCall": false,
                        "typeDescriptions": {
                          "typeIdentifier": "t_tuple$__$",
                          "typeString": "tuple()"
                        }
                      },
                      "id": 43156,
                      "nodeType": "ExpressionStatement",
                      "src": "6920:60:19"
                    }
                  ]
                },
                {
                  "expression": {
                    "hexValue": "74727565",
                    "id": 43158,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": true,
                    "kind": "bool",
                    "lValueRequested": false,
                    "nodeType": "Literal",
                    "src": "7008:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    },
                    "value": "true"
                  },
                  "functionReturnParameters": 43129,
                  "id": 43159,
                  "nodeType": "Return",
                  "src": "7001:11:19"
                }
              ]
            },
            "documentation": {
              "id": 43121,
              "nodeType": "StructuredDocumentation",
              "src": "6111:476:19",
              "text": " @dev Atomically decreases the allowance granted to `spender` by the caller.\n This is an alternative to {approve} that can be used as a mitigation for\n problems described in {IERC20-approve}.\n Emits an {Approval} event indicating the updated allowance.\n Requirements:\n - `spender` cannot be the zero address.\n - `spender` must have allowance for the caller of at least\n `subtractedValue`."
            },
            "functionSelector": "a457c2d7",
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "decreaseAllowance",
            "nameLocation": "6601:17:19",
            "parameters": {
              "id": 43126,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43123,
                  "mutability": "mutable",
                  "name": "spender",
                  "nameLocation": "6627:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43161,
                  "src": "6619:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43122,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "6619:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43125,
                  "mutability": "mutable",
                  "name": "subtractedValue",
                  "nameLocation": "6644:15:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43161,
                  "src": "6636:23:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43124,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "6636:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "6618:42:19"
            },
            "returnParameters": {
              "id": 43129,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43128,
                  "mutability": "mutable",
                  "name": "",
                  "nameLocation": "-1:-1:-1",
                  "nodeType": "VariableDeclaration",
                  "scope": 43161,
                  "src": "6685:4:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 43127,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "6685:4:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "6684:6:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "public"
          },
          {
            "id": 43238,
            "nodeType": "FunctionDefinition",
            "src": "7473:818:19",
            "nodes": [],
            "body": {
              "id": 43237,
              "nodeType": "Block",
              "src": "7581:710:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        "id": 43177,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43172,
                          "name": "from",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43164,
                          "src": "7599:4:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": "!=",
                        "rightExpression": {
                          "arguments": [
                            {
                              "hexValue": "30",
                              "id": 43175,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": true,
                              "kind": "number",
                              "lValueRequested": false,
                              "nodeType": "Literal",
                              "src": "7615:1:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              },
                              "value": "0"
                            }
                          ],
                          "expression": {
                            "argumentTypes": [
                              {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              }
                            ],
                            "id": 43174,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "lValueRequested": false,
                            "nodeType": "ElementaryTypeNameExpression",
                            "src": "7607:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_type$_t_address_$",
                              "typeString": "type(address)"
                            },
                            "typeName": {
                              "id": 43173,
                              "name": "address",
                              "nodeType": "ElementaryTypeName",
                              "src": "7607:7:19",
                              "typeDescriptions": {}
                            }
                          },
                          "id": 43176,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "kind": "typeConversion",
                          "lValueRequested": false,
                          "nameLocations": [],
                          "names": [],
                          "nodeType": "FunctionCall",
                          "src": "7607:10:19",
                          "tryCall": false,
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "src": "7599:18:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a207472616e736665722066726f6d20746865207a65726f2061646472657373",
                        "id": 43178,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "7619:39:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_baecc556b46f4ed0f2b4cb599d60785ac8563dd2dc0a5bf12edea1c39e5e1fea",
                          "typeString": "literal_string \"ERC20: transfer from the zero address\""
                        },
                        "value": "ERC20: transfer from the zero address"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_baecc556b46f4ed0f2b4cb599d60785ac8563dd2dc0a5bf12edea1c39e5e1fea",
                          "typeString": "literal_string \"ERC20: transfer from the zero address\""
                        }
                      ],
                      "id": 43171,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "7591:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43179,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "7591:68:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43180,
                  "nodeType": "ExpressionStatement",
                  "src": "7591:68:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        "id": 43187,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43182,
                          "name": "to",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43166,
                          "src": "7677:2:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": "!=",
                        "rightExpression": {
                          "arguments": [
                            {
                              "hexValue": "30",
                              "id": 43185,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": true,
                              "kind": "number",
                              "lValueRequested": false,
                              "nodeType": "Literal",
                              "src": "7691:1:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              },
                              "value": "0"
                            }
                          ],
                          "expression": {
                            "argumentTypes": [
                              {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              }
                            ],
                            "id": 43184,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "lValueRequested": false,
                            "nodeType": "ElementaryTypeNameExpression",
                            "src": "7683:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_type$_t_address_$",
                              "typeString": "type(address)"
                            },
                            "typeName": {
                              "id": 43183,
                              "name": "address",
                              "nodeType": "ElementaryTypeName",
                              "src": "7683:7:19",
                              "typeDescriptions": {}
                            }
                          },
                          "id": 43186,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "kind": "typeConversion",
                          "lValueRequested": false,
                          "nameLocations": [],
                          "names": [],
                          "nodeType": "FunctionCall",
                          "src": "7683:10:19",
                          "tryCall": false,
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "src": "7677:16:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a207472616e7366657220746f20746865207a65726f2061646472657373",
                        "id": 43188,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "7695:37:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_0557e210f7a69a685100a7e4e3d0a7024c546085cee28910fd17d0b081d9516f",
                          "typeString": "literal_string \"ERC20: transfer to the zero address\""
                        },
                        "value": "ERC20: transfer to the zero address"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_0557e210f7a69a685100a7e4e3d0a7024c546085cee28910fd17d0b081d9516f",
                          "typeString": "literal_string \"ERC20: transfer to the zero address\""
                        }
                      ],
                      "id": 43181,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "7669:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43189,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "7669:64:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43190,
                  "nodeType": "ExpressionStatement",
                  "src": "7669:64:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43192,
                        "name": "from",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43164,
                        "src": "7765:4:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43193,
                        "name": "to",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43166,
                        "src": "7771:2:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43194,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43168,
                        "src": "7775:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43191,
                      "name": "_beforeTokenTransfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43466,
                      "src": "7744:20:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43195,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "7744:38:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43196,
                  "nodeType": "ExpressionStatement",
                  "src": "7744:38:19"
                },
                {
                  "assignments": [
                    43198
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43198,
                      "mutability": "mutable",
                      "name": "fromBalance",
                      "nameLocation": "7801:11:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43237,
                      "src": "7793:19:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      },
                      "typeName": {
                        "id": 43197,
                        "name": "uint256",
                        "nodeType": "ElementaryTypeName",
                        "src": "7793:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43202,
                  "initialValue": {
                    "baseExpression": {
                      "id": 43199,
                      "name": "_balances",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42907,
                      "src": "7815:9:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                        "typeString": "mapping(address => uint256)"
                      }
                    },
                    "id": 43201,
                    "indexExpression": {
                      "id": 43200,
                      "name": "from",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43164,
                      "src": "7825:4:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      }
                    },
                    "isConstant": false,
                    "isLValue": true,
                    "isPure": false,
                    "lValueRequested": false,
                    "nodeType": "IndexAccess",
                    "src": "7815:15:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "7793:37:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        },
                        "id": 43206,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43204,
                          "name": "fromBalance",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43198,
                          "src": "7848:11:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": ">=",
                        "rightExpression": {
                          "id": 43205,
                          "name": "amount",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43168,
                          "src": "7863:6:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "7848:21:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a207472616e7366657220616d6f756e7420657863656564732062616c616e6365",
                        "id": 43207,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "7871:40:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_4107e8a8b9e94bf8ff83080ddec1c0bffe897ebc2241b89d44f66b3d274088b6",
                          "typeString": "literal_string \"ERC20: transfer amount exceeds balance\""
                        },
                        "value": "ERC20: transfer amount exceeds balance"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_4107e8a8b9e94bf8ff83080ddec1c0bffe897ebc2241b89d44f66b3d274088b6",
                          "typeString": "literal_string \"ERC20: transfer amount exceeds balance\""
                        }
                      ],
                      "id": 43203,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "7840:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43208,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "7840:72:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43209,
                  "nodeType": "ExpressionStatement",
                  "src": "7840:72:19"
                },
                {
                  "id": 43224,
                  "nodeType": "UncheckedBlock",
                  "src": "7922:273:19",
                  "statements": [
                    {
                      "expression": {
                        "id": 43216,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftHandSide": {
                          "baseExpression": {
                            "id": 43210,
                            "name": "_balances",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 42907,
                            "src": "7946:9:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                              "typeString": "mapping(address => uint256)"
                            }
                          },
                          "id": 43212,
                          "indexExpression": {
                            "id": 43211,
                            "name": "from",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43164,
                            "src": "7956:4:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_address",
                              "typeString": "address"
                            }
                          },
                          "isConstant": false,
                          "isLValue": true,
                          "isPure": false,
                          "lValueRequested": true,
                          "nodeType": "IndexAccess",
                          "src": "7946:15:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "Assignment",
                        "operator": "=",
                        "rightHandSide": {
                          "commonType": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          },
                          "id": 43215,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": false,
                          "lValueRequested": false,
                          "leftExpression": {
                            "id": 43213,
                            "name": "fromBalance",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43198,
                            "src": "7964:11:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_uint256",
                              "typeString": "uint256"
                            }
                          },
                          "nodeType": "BinaryOperation",
                          "operator": "-",
                          "rightExpression": {
                            "id": 43214,
                            "name": "amount",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43168,
                            "src": "7978:6:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_uint256",
                              "typeString": "uint256"
                            }
                          },
                          "src": "7964:20:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "7946:38:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "id": 43217,
                      "nodeType": "ExpressionStatement",
                      "src": "7946:38:19"
                    },
                    {
                      "expression": {
                        "id": 43222,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftHandSide": {
                          "baseExpression": {
                            "id": 43218,
                            "name": "_balances",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 42907,
                            "src": "8161:9:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                              "typeString": "mapping(address => uint256)"
                            }
                          },
                          "id": 43220,
                          "indexExpression": {
                            "id": 43219,
                            "name": "to",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43166,
                            "src": "8171:2:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_address",
                              "typeString": "address"
                            }
                          },
                          "isConstant": false,
                          "isLValue": true,
                          "isPure": false,
                          "lValueRequested": true,
                          "nodeType": "IndexAccess",
                          "src": "8161:13:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "Assignment",
                        "operator": "+=",
                        "rightHandSide": {
                          "id": 43221,
                          "name": "amount",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43168,
                          "src": "8178:6:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "8161:23:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "id": 43223,
                      "nodeType": "ExpressionStatement",
                      "src": "8161:23:19"
                    }
                  ]
                },
                {
                  "eventCall": {
                    "arguments": [
                      {
                        "id": 43226,
                        "name": "from",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43164,
                        "src": "8219:4:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43227,
                        "name": "to",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43166,
                        "src": "8225:2:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43228,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43168,
                        "src": "8229:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43225,
                      "name": "Transfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43490,
                      "src": "8210:8:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43229,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "8210:26:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43230,
                  "nodeType": "EmitStatement",
                  "src": "8205:31:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43232,
                        "name": "from",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43164,
                        "src": "8267:4:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43233,
                        "name": "to",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43166,
                        "src": "8273:2:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43234,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43168,
                        "src": "8277:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43231,
                      "name": "_afterTokenTransfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43477,
                      "src": "8247:19:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43235,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "8247:37:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43236,
                  "nodeType": "ExpressionStatement",
                  "src": "8247:37:19"
                }
              ]
            },
            "documentation": {
              "id": 43162,
              "nodeType": "StructuredDocumentation",
              "src": "7025:443:19",
              "text": " @dev Moves `amount` of tokens from `from` to `to`.\n This internal function is equivalent to {transfer}, and can be used to\n e.g. implement automatic token fees, slashing mechanisms, etc.\n Emits a {Transfer} event.\n Requirements:\n - `from` cannot be the zero address.\n - `to` cannot be the zero address.\n - `from` must have a balance of at least `amount`."
            },
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "_transfer",
            "nameLocation": "7482:9:19",
            "parameters": {
              "id": 43169,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43164,
                  "mutability": "mutable",
                  "name": "from",
                  "nameLocation": "7509:4:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43238,
                  "src": "7501:12:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43163,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "7501:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43166,
                  "mutability": "mutable",
                  "name": "to",
                  "nameLocation": "7531:2:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43238,
                  "src": "7523:10:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43165,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "7523:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43168,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "7551:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43238,
                  "src": "7543:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43167,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "7543:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "7491:72:19"
            },
            "returnParameters": {
              "id": 43170,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "7581:0:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "internal"
          },
          {
            "id": 43295,
            "nodeType": "FunctionDefinition",
            "src": "8567:535:19",
            "nodes": [],
            "body": {
              "id": 43294,
              "nodeType": "Block",
              "src": "8632:470:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        "id": 43252,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43247,
                          "name": "account",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43241,
                          "src": "8650:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": "!=",
                        "rightExpression": {
                          "arguments": [
                            {
                              "hexValue": "30",
                              "id": 43250,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": true,
                              "kind": "number",
                              "lValueRequested": false,
                              "nodeType": "Literal",
                              "src": "8669:1:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              },
                              "value": "0"
                            }
                          ],
                          "expression": {
                            "argumentTypes": [
                              {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              }
                            ],
                            "id": 43249,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "lValueRequested": false,
                            "nodeType": "ElementaryTypeNameExpression",
                            "src": "8661:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_type$_t_address_$",
                              "typeString": "type(address)"
                            },
                            "typeName": {
                              "id": 43248,
                              "name": "address",
                              "nodeType": "ElementaryTypeName",
                              "src": "8661:7:19",
                              "typeDescriptions": {}
                            }
                          },
                          "id": 43251,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "kind": "typeConversion",
                          "lValueRequested": false,
                          "nameLocations": [],
                          "names": [],
                          "nodeType": "FunctionCall",
                          "src": "8661:10:19",
                          "tryCall": false,
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "src": "8650:21:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a206d696e7420746f20746865207a65726f2061646472657373",
                        "id": 43253,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "8673:33:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_fc0b381caf0a47702017f3c4b358ebe3d3aff6c60ce819a8bf3ef5a95d4f202e",
                          "typeString": "literal_string \"ERC20: mint to the zero address\""
                        },
                        "value": "ERC20: mint to the zero address"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_fc0b381caf0a47702017f3c4b358ebe3d3aff6c60ce819a8bf3ef5a95d4f202e",
                          "typeString": "literal_string \"ERC20: mint to the zero address\""
                        }
                      ],
                      "id": 43246,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "8642:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43254,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "8642:65:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43255,
                  "nodeType": "ExpressionStatement",
                  "src": "8642:65:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "arguments": [
                          {
                            "hexValue": "30",
                            "id": 43259,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "kind": "number",
                            "lValueRequested": false,
                            "nodeType": "Literal",
                            "src": "8747:1:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            },
                            "value": "0"
                          }
                        ],
                        "expression": {
                          "argumentTypes": [
                            {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            }
                          ],
                          "id": 43258,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "lValueRequested": false,
                          "nodeType": "ElementaryTypeNameExpression",
                          "src": "8739:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_type$_t_address_$",
                            "typeString": "type(address)"
                          },
                          "typeName": {
                            "id": 43257,
                            "name": "address",
                            "nodeType": "ElementaryTypeName",
                            "src": "8739:7:19",
                            "typeDescriptions": {}
                          }
                        },
                        "id": 43260,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "typeConversion",
                        "lValueRequested": false,
                        "nameLocations": [],
                        "names": [],
                        "nodeType": "FunctionCall",
                        "src": "8739:10:19",
                        "tryCall": false,
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43261,
                        "name": "account",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43241,
                        "src": "8751:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43262,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43243,
                        "src": "8760:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43256,
                      "name": "_beforeTokenTransfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43466,
                      "src": "8718:20:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43263,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "8718:49:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43264,
                  "nodeType": "ExpressionStatement",
                  "src": "8718:49:19"
                },
                {
                  "expression": {
                    "id": 43267,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "lValueRequested": false,
                    "leftHandSide": {
                      "id": 43265,
                      "name": "_totalSupply",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42915,
                      "src": "8778:12:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      }
                    },
                    "nodeType": "Assignment",
                    "operator": "+=",
                    "rightHandSide": {
                      "id": 43266,
                      "name": "amount",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43243,
                      "src": "8794:6:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      }
                    },
                    "src": "8778:22:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "id": 43268,
                  "nodeType": "ExpressionStatement",
                  "src": "8778:22:19"
                },
                {
                  "id": 43275,
                  "nodeType": "UncheckedBlock",
                  "src": "8810:175:19",
                  "statements": [
                    {
                      "expression": {
                        "id": 43273,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftHandSide": {
                          "baseExpression": {
                            "id": 43269,
                            "name": "_balances",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 42907,
                            "src": "8946:9:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                              "typeString": "mapping(address => uint256)"
                            }
                          },
                          "id": 43271,
                          "indexExpression": {
                            "id": 43270,
                            "name": "account",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43241,
                            "src": "8956:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_address",
                              "typeString": "address"
                            }
                          },
                          "isConstant": false,
                          "isLValue": true,
                          "isPure": false,
                          "lValueRequested": true,
                          "nodeType": "IndexAccess",
                          "src": "8946:18:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "Assignment",
                        "operator": "+=",
                        "rightHandSide": {
                          "id": 43272,
                          "name": "amount",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43243,
                          "src": "8968:6:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "8946:28:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "id": 43274,
                      "nodeType": "ExpressionStatement",
                      "src": "8946:28:19"
                    }
                  ]
                },
                {
                  "eventCall": {
                    "arguments": [
                      {
                        "arguments": [
                          {
                            "hexValue": "30",
                            "id": 43279,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "kind": "number",
                            "lValueRequested": false,
                            "nodeType": "Literal",
                            "src": "9016:1:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            },
                            "value": "0"
                          }
                        ],
                        "expression": {
                          "argumentTypes": [
                            {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            }
                          ],
                          "id": 43278,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "lValueRequested": false,
                          "nodeType": "ElementaryTypeNameExpression",
                          "src": "9008:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_type$_t_address_$",
                            "typeString": "type(address)"
                          },
                          "typeName": {
                            "id": 43277,
                            "name": "address",
                            "nodeType": "ElementaryTypeName",
                            "src": "9008:7:19",
                            "typeDescriptions": {}
                          }
                        },
                        "id": 43280,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "typeConversion",
                        "lValueRequested": false,
                        "nameLocations": [],
                        "names": [],
                        "nodeType": "FunctionCall",
                        "src": "9008:10:19",
                        "tryCall": false,
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43281,
                        "name": "account",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43241,
                        "src": "9020:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43282,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43243,
                        "src": "9029:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43276,
                      "name": "Transfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43490,
                      "src": "8999:8:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43283,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "8999:37:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43284,
                  "nodeType": "EmitStatement",
                  "src": "8994:42:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "arguments": [
                          {
                            "hexValue": "30",
                            "id": 43288,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "kind": "number",
                            "lValueRequested": false,
                            "nodeType": "Literal",
                            "src": "9075:1:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            },
                            "value": "0"
                          }
                        ],
                        "expression": {
                          "argumentTypes": [
                            {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            }
                          ],
                          "id": 43287,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "lValueRequested": false,
                          "nodeType": "ElementaryTypeNameExpression",
                          "src": "9067:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_type$_t_address_$",
                            "typeString": "type(address)"
                          },
                          "typeName": {
                            "id": 43286,
                            "name": "address",
                            "nodeType": "ElementaryTypeName",
                            "src": "9067:7:19",
                            "typeDescriptions": {}
                          }
                        },
                        "id": 43289,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "typeConversion",
                        "lValueRequested": false,
                        "nameLocations": [],
                        "names": [],
                        "nodeType": "FunctionCall",
                        "src": "9067:10:19",
                        "tryCall": false,
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43290,
                        "name": "account",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43241,
                        "src": "9079:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43291,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43243,
                        "src": "9088:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43285,
                      "name": "_afterTokenTransfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43477,
                      "src": "9047:19:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43292,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "9047:48:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43293,
                  "nodeType": "ExpressionStatement",
                  "src": "9047:48:19"
                }
              ]
            },
            "documentation": {
              "id": 43239,
              "nodeType": "StructuredDocumentation",
              "src": "8297:265:19",
              "text": "@dev Creates `amount` tokens and assigns them to `account`, increasing\n the total supply.\n Emits a {Transfer} event with `from` set to the zero address.\n Requirements:\n - `account` cannot be the zero address."
            },
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "_mint",
            "nameLocation": "8576:5:19",
            "parameters": {
              "id": 43244,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43241,
                  "mutability": "mutable",
                  "name": "account",
                  "nameLocation": "8590:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43295,
                  "src": "8582:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43240,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "8582:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43243,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "8607:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43295,
                  "src": "8599:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43242,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "8599:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "8581:33:19"
            },
            "returnParameters": {
              "id": 43245,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "8632:0:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "internal"
          },
          {
            "id": 43367,
            "nodeType": "FunctionDefinition",
            "src": "9422:659:19",
            "nodes": [],
            "body": {
              "id": 43366,
              "nodeType": "Block",
              "src": "9487:594:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        "id": 43309,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43304,
                          "name": "account",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43298,
                          "src": "9505:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": "!=",
                        "rightExpression": {
                          "arguments": [
                            {
                              "hexValue": "30",
                              "id": 43307,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": true,
                              "kind": "number",
                              "lValueRequested": false,
                              "nodeType": "Literal",
                              "src": "9524:1:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              },
                              "value": "0"
                            }
                          ],
                          "expression": {
                            "argumentTypes": [
                              {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              }
                            ],
                            "id": 43306,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "lValueRequested": false,
                            "nodeType": "ElementaryTypeNameExpression",
                            "src": "9516:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_type$_t_address_$",
                              "typeString": "type(address)"
                            },
                            "typeName": {
                              "id": 43305,
                              "name": "address",
                              "nodeType": "ElementaryTypeName",
                              "src": "9516:7:19",
                              "typeDescriptions": {}
                            }
                          },
                          "id": 43308,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "kind": "typeConversion",
                          "lValueRequested": false,
                          "nameLocations": [],
                          "names": [],
                          "nodeType": "FunctionCall",
                          "src": "9516:10:19",
                          "tryCall": false,
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "src": "9505:21:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a206275726e2066726f6d20746865207a65726f2061646472657373",
                        "id": 43310,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "9528:35:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_b16788493b576042bb52c50ed56189e0b250db113c7bfb1c3897d25cf9632d7f",
                          "typeString": "literal_string \"ERC20: burn from the zero address\""
                        },
                        "value": "ERC20: burn from the zero address"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_b16788493b576042bb52c50ed56189e0b250db113c7bfb1c3897d25cf9632d7f",
                          "typeString": "literal_string \"ERC20: burn from the zero address\""
                        }
                      ],
                      "id": 43303,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "9497:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43311,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "9497:67:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43312,
                  "nodeType": "ExpressionStatement",
                  "src": "9497:67:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43314,
                        "name": "account",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43298,
                        "src": "9596:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "arguments": [
                          {
                            "hexValue": "30",
                            "id": 43317,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "kind": "number",
                            "lValueRequested": false,
                            "nodeType": "Literal",
                            "src": "9613:1:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            },
                            "value": "0"
                          }
                        ],
                        "expression": {
                          "argumentTypes": [
                            {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            }
                          ],
                          "id": 43316,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "lValueRequested": false,
                          "nodeType": "ElementaryTypeNameExpression",
                          "src": "9605:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_type$_t_address_$",
                            "typeString": "type(address)"
                          },
                          "typeName": {
                            "id": 43315,
                            "name": "address",
                            "nodeType": "ElementaryTypeName",
                            "src": "9605:7:19",
                            "typeDescriptions": {}
                          }
                        },
                        "id": 43318,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "typeConversion",
                        "lValueRequested": false,
                        "nameLocations": [],
                        "names": [],
                        "nodeType": "FunctionCall",
                        "src": "9605:10:19",
                        "tryCall": false,
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43319,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43300,
                        "src": "9617:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43313,
                      "name": "_beforeTokenTransfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43466,
                      "src": "9575:20:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43320,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "9575:49:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43321,
                  "nodeType": "ExpressionStatement",
                  "src": "9575:49:19"
                },
                {
                  "assignments": [
                    43323
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43323,
                      "mutability": "mutable",
                      "name": "accountBalance",
                      "nameLocation": "9643:14:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43366,
                      "src": "9635:22:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      },
                      "typeName": {
                        "id": 43322,
                        "name": "uint256",
                        "nodeType": "ElementaryTypeName",
                        "src": "9635:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43327,
                  "initialValue": {
                    "baseExpression": {
                      "id": 43324,
                      "name": "_balances",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 42907,
                      "src": "9660:9:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                        "typeString": "mapping(address => uint256)"
                      }
                    },
                    "id": 43326,
                    "indexExpression": {
                      "id": 43325,
                      "name": "account",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43298,
                      "src": "9670:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_address",
                        "typeString": "address"
                      }
                    },
                    "isConstant": false,
                    "isLValue": true,
                    "isPure": false,
                    "lValueRequested": false,
                    "nodeType": "IndexAccess",
                    "src": "9660:18:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "9635:43:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        },
                        "id": 43331,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43329,
                          "name": "accountBalance",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43323,
                          "src": "9696:14:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": ">=",
                        "rightExpression": {
                          "id": 43330,
                          "name": "amount",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43300,
                          "src": "9714:6:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "9696:24:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a206275726e20616d6f756e7420657863656564732062616c616e6365",
                        "id": 43332,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "9722:36:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_149b126e7125232b4200af45303d04fba8b74653b1a295a6a561a528c33fefdd",
                          "typeString": "literal_string \"ERC20: burn amount exceeds balance\""
                        },
                        "value": "ERC20: burn amount exceeds balance"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_149b126e7125232b4200af45303d04fba8b74653b1a295a6a561a528c33fefdd",
                          "typeString": "literal_string \"ERC20: burn amount exceeds balance\""
                        }
                      ],
                      "id": 43328,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "9688:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43333,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "9688:71:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43334,
                  "nodeType": "ExpressionStatement",
                  "src": "9688:71:19"
                },
                {
                  "id": 43347,
                  "nodeType": "UncheckedBlock",
                  "src": "9769:194:19",
                  "statements": [
                    {
                      "expression": {
                        "id": 43341,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftHandSide": {
                          "baseExpression": {
                            "id": 43335,
                            "name": "_balances",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 42907,
                            "src": "9793:9:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                              "typeString": "mapping(address => uint256)"
                            }
                          },
                          "id": 43337,
                          "indexExpression": {
                            "id": 43336,
                            "name": "account",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43298,
                            "src": "9803:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_address",
                              "typeString": "address"
                            }
                          },
                          "isConstant": false,
                          "isLValue": true,
                          "isPure": false,
                          "lValueRequested": true,
                          "nodeType": "IndexAccess",
                          "src": "9793:18:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "Assignment",
                        "operator": "=",
                        "rightHandSide": {
                          "commonType": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          },
                          "id": 43340,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": false,
                          "lValueRequested": false,
                          "leftExpression": {
                            "id": 43338,
                            "name": "accountBalance",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43323,
                            "src": "9814:14:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_uint256",
                              "typeString": "uint256"
                            }
                          },
                          "nodeType": "BinaryOperation",
                          "operator": "-",
                          "rightExpression": {
                            "id": 43339,
                            "name": "amount",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [],
                            "referencedDeclaration": 43300,
                            "src": "9831:6:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_uint256",
                              "typeString": "uint256"
                            }
                          },
                          "src": "9814:23:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "9793:44:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "id": 43342,
                      "nodeType": "ExpressionStatement",
                      "src": "9793:44:19"
                    },
                    {
                      "expression": {
                        "id": 43345,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftHandSide": {
                          "id": 43343,
                          "name": "_totalSupply",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 42915,
                          "src": "9930:12:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "nodeType": "Assignment",
                        "operator": "-=",
                        "rightHandSide": {
                          "id": 43344,
                          "name": "amount",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43300,
                          "src": "9946:6:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_uint256",
                            "typeString": "uint256"
                          }
                        },
                        "src": "9930:22:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "id": 43346,
                      "nodeType": "ExpressionStatement",
                      "src": "9930:22:19"
                    }
                  ]
                },
                {
                  "eventCall": {
                    "arguments": [
                      {
                        "id": 43349,
                        "name": "account",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43298,
                        "src": "9987:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "arguments": [
                          {
                            "hexValue": "30",
                            "id": 43352,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "kind": "number",
                            "lValueRequested": false,
                            "nodeType": "Literal",
                            "src": "10004:1:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            },
                            "value": "0"
                          }
                        ],
                        "expression": {
                          "argumentTypes": [
                            {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            }
                          ],
                          "id": 43351,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "lValueRequested": false,
                          "nodeType": "ElementaryTypeNameExpression",
                          "src": "9996:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_type$_t_address_$",
                            "typeString": "type(address)"
                          },
                          "typeName": {
                            "id": 43350,
                            "name": "address",
                            "nodeType": "ElementaryTypeName",
                            "src": "9996:7:19",
                            "typeDescriptions": {}
                          }
                        },
                        "id": 43353,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "typeConversion",
                        "lValueRequested": false,
                        "nameLocations": [],
                        "names": [],
                        "nodeType": "FunctionCall",
                        "src": "9996:10:19",
                        "tryCall": false,
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43354,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43300,
                        "src": "10008:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43348,
                      "name": "Transfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43490,
                      "src": "9978:8:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43355,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "9978:37:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43356,
                  "nodeType": "EmitStatement",
                  "src": "9973:42:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "id": 43358,
                        "name": "account",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43298,
                        "src": "10046:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "arguments": [
                          {
                            "hexValue": "30",
                            "id": 43361,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "kind": "number",
                            "lValueRequested": false,
                            "nodeType": "Literal",
                            "src": "10063:1:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            },
                            "value": "0"
                          }
                        ],
                        "expression": {
                          "argumentTypes": [
                            {
                              "typeIdentifier": "t_rational_0_by_1",
                              "typeString": "int_const 0"
                            }
                          ],
                          "id": 43360,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "lValueRequested": false,
                          "nodeType": "ElementaryTypeNameExpression",
                          "src": "10055:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_type$_t_address_$",
                            "typeString": "type(address)"
                          },
                          "typeName": {
                            "id": 43359,
                            "name": "address",
                            "nodeType": "ElementaryTypeName",
                            "src": "10055:7:19",
                            "typeDescriptions": {}
                          }
                        },
                        "id": 43362,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "typeConversion",
                        "lValueRequested": false,
                        "nameLocations": [],
                        "names": [],
                        "nodeType": "FunctionCall",
                        "src": "10055:10:19",
                        "tryCall": false,
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43363,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43300,
                        "src": "10067:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43357,
                      "name": "_afterTokenTransfer",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43477,
                      "src": "10026:19:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43364,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "10026:48:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43365,
                  "nodeType": "ExpressionStatement",
                  "src": "10026:48:19"
                }
              ]
            },
            "documentation": {
              "id": 43296,
              "nodeType": "StructuredDocumentation",
              "src": "9108:309:19",
              "text": " @dev Destroys `amount` tokens from `account`, reducing the\n total supply.\n Emits a {Transfer} event with `to` set to the zero address.\n Requirements:\n - `account` cannot be the zero address.\n - `account` must have at least `amount` tokens."
            },
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "_burn",
            "nameLocation": "9431:5:19",
            "parameters": {
              "id": 43301,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43298,
                  "mutability": "mutable",
                  "name": "account",
                  "nameLocation": "9445:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43367,
                  "src": "9437:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43297,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "9437:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43300,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "9462:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43367,
                  "src": "9454:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43299,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "9454:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "9436:33:19"
            },
            "returnParameters": {
              "id": 43302,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "9487:0:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "internal"
          },
          {
            "id": 43412,
            "nodeType": "FunctionDefinition",
            "src": "10504:370:19",
            "nodes": [],
            "body": {
              "id": 43411,
              "nodeType": "Block",
              "src": "10617:257:19",
              "nodes": [],
              "statements": [
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        "id": 43383,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43378,
                          "name": "owner",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43370,
                          "src": "10635:5:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": "!=",
                        "rightExpression": {
                          "arguments": [
                            {
                              "hexValue": "30",
                              "id": 43381,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": true,
                              "kind": "number",
                              "lValueRequested": false,
                              "nodeType": "Literal",
                              "src": "10652:1:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              },
                              "value": "0"
                            }
                          ],
                          "expression": {
                            "argumentTypes": [
                              {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              }
                            ],
                            "id": 43380,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "lValueRequested": false,
                            "nodeType": "ElementaryTypeNameExpression",
                            "src": "10644:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_type$_t_address_$",
                              "typeString": "type(address)"
                            },
                            "typeName": {
                              "id": 43379,
                              "name": "address",
                              "nodeType": "ElementaryTypeName",
                              "src": "10644:7:19",
                              "typeDescriptions": {}
                            }
                          },
                          "id": 43382,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "kind": "typeConversion",
                          "lValueRequested": false,
                          "nameLocations": [],
                          "names": [],
                          "nodeType": "FunctionCall",
                          "src": "10644:10:19",
                          "tryCall": false,
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "src": "10635:19:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a20617070726f76652066726f6d20746865207a65726f2061646472657373",
                        "id": 43384,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "10656:38:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_c953f4879035ed60e766b34720f656aab5c697b141d924c283124ecedb91c208",
                          "typeString": "literal_string \"ERC20: approve from the zero address\""
                        },
                        "value": "ERC20: approve from the zero address"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_c953f4879035ed60e766b34720f656aab5c697b141d924c283124ecedb91c208",
                          "typeString": "literal_string \"ERC20: approve from the zero address\""
                        }
                      ],
                      "id": 43377,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "10627:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43385,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "10627:68:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43386,
                  "nodeType": "ExpressionStatement",
                  "src": "10627:68:19"
                },
                {
                  "expression": {
                    "arguments": [
                      {
                        "commonType": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        "id": 43393,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": false,
                        "lValueRequested": false,
                        "leftExpression": {
                          "id": 43388,
                          "name": "spender",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43372,
                          "src": "10713:7:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "nodeType": "BinaryOperation",
                        "operator": "!=",
                        "rightExpression": {
                          "arguments": [
                            {
                              "hexValue": "30",
                              "id": 43391,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": true,
                              "kind": "number",
                              "lValueRequested": false,
                              "nodeType": "Literal",
                              "src": "10732:1:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              },
                              "value": "0"
                            }
                          ],
                          "expression": {
                            "argumentTypes": [
                              {
                                "typeIdentifier": "t_rational_0_by_1",
                                "typeString": "int_const 0"
                              }
                            ],
                            "id": 43390,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "lValueRequested": false,
                            "nodeType": "ElementaryTypeNameExpression",
                            "src": "10724:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_type$_t_address_$",
                              "typeString": "type(address)"
                            },
                            "typeName": {
                              "id": 43389,
                              "name": "address",
                              "nodeType": "ElementaryTypeName",
                              "src": "10724:7:19",
                              "typeDescriptions": {}
                            }
                          },
                          "id": 43392,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": true,
                          "kind": "typeConversion",
                          "lValueRequested": false,
                          "nameLocations": [],
                          "names": [],
                          "nodeType": "FunctionCall",
                          "src": "10724:10:19",
                          "tryCall": false,
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "src": "10713:21:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        }
                      },
                      {
                        "hexValue": "45524332303a20617070726f766520746f20746865207a65726f2061646472657373",
                        "id": 43394,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "string",
                        "lValueRequested": false,
                        "nodeType": "Literal",
                        "src": "10736:36:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_stringliteral_24883cc5fe64ace9d0df1893501ecb93c77180f0ff69cca79affb3c316dc8029",
                          "typeString": "literal_string \"ERC20: approve to the zero address\""
                        },
                        "value": "ERC20: approve to the zero address"
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_bool",
                          "typeString": "bool"
                        },
                        {
                          "typeIdentifier": "t_stringliteral_24883cc5fe64ace9d0df1893501ecb93c77180f0ff69cca79affb3c316dc8029",
                          "typeString": "literal_string \"ERC20: approve to the zero address\""
                        }
                      ],
                      "id": 43387,
                      "name": "require",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [
                        -18,
                        -18
                      ],
                      "referencedDeclaration": -18,
                      "src": "10705:7:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                        "typeString": "function (bool,string memory) pure"
                      }
                    },
                    "id": 43395,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "10705:68:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43396,
                  "nodeType": "ExpressionStatement",
                  "src": "10705:68:19"
                },
                {
                  "expression": {
                    "id": 43403,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "lValueRequested": false,
                    "leftHandSide": {
                      "baseExpression": {
                        "baseExpression": {
                          "id": 43397,
                          "name": "_allowances",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 42913,
                          "src": "10784:11:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$",
                            "typeString": "mapping(address => mapping(address => uint256))"
                          }
                        },
                        "id": 43400,
                        "indexExpression": {
                          "id": 43398,
                          "name": "owner",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": 43370,
                          "src": "10796:5:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_address",
                            "typeString": "address"
                          }
                        },
                        "isConstant": false,
                        "isLValue": true,
                        "isPure": false,
                        "lValueRequested": false,
                        "nodeType": "IndexAccess",
                        "src": "10784:18:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
                          "typeString": "mapping(address => uint256)"
                        }
                      },
                      "id": 43401,
                      "indexExpression": {
                        "id": 43399,
                        "name": "spender",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43372,
                        "src": "10803:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      "isConstant": false,
                      "isLValue": true,
                      "isPure": false,
                      "lValueRequested": true,
                      "nodeType": "IndexAccess",
                      "src": "10784:27:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      }
                    },
                    "nodeType": "Assignment",
                    "operator": "=",
                    "rightHandSide": {
                      "id": 43402,
                      "name": "amount",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43374,
                      "src": "10814:6:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      }
                    },
                    "src": "10784:36:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "id": 43404,
                  "nodeType": "ExpressionStatement",
                  "src": "10784:36:19"
                },
                {
                  "eventCall": {
                    "arguments": [
                      {
                        "id": 43406,
                        "name": "owner",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43370,
                        "src": "10844:5:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43407,
                        "name": "spender",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43372,
                        "src": "10851:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43408,
                        "name": "amount",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43374,
                        "src": "10860:6:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      ],
                      "id": 43405,
                      "name": "Approval",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43499,
                      "src": "10835:8:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                        "typeString": "function (address,address,uint256)"
                      }
                    },
                    "id": 43409,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "10835:32:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_tuple$__$",
                      "typeString": "tuple()"
                    }
                  },
                  "id": 43410,
                  "nodeType": "EmitStatement",
                  "src": "10830:37:19"
                }
              ]
            },
            "documentation": {
              "id": 43368,
              "nodeType": "StructuredDocumentation",
              "src": "10087:412:19",
              "text": " @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n This internal function is equivalent to `approve`, and can be used to\n e.g. set automatic allowances for certain subsystems, etc.\n Emits an {Approval} event.\n Requirements:\n - `owner` cannot be the zero address.\n - `spender` cannot be the zero address."
            },
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "_approve",
            "nameLocation": "10513:8:19",
            "parameters": {
              "id": 43375,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43370,
                  "mutability": "mutable",
                  "name": "owner",
                  "nameLocation": "10539:5:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43412,
                  "src": "10531:13:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43369,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "10531:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43372,
                  "mutability": "mutable",
                  "name": "spender",
                  "nameLocation": "10562:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43412,
                  "src": "10554:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43371,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "10554:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43374,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "10587:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43412,
                  "src": "10579:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43373,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "10579:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "10521:78:19"
            },
            "returnParameters": {
              "id": 43376,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "10617:0:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "internal"
          },
          {
            "id": 43455,
            "nodeType": "FunctionDefinition",
            "src": "11155:441:19",
            "nodes": [],
            "body": {
              "id": 43454,
              "nodeType": "Block",
              "src": "11275:321:19",
              "nodes": [],
              "statements": [
                {
                  "assignments": [
                    43423
                  ],
                  "declarations": [
                    {
                      "constant": false,
                      "id": 43423,
                      "mutability": "mutable",
                      "name": "currentAllowance",
                      "nameLocation": "11293:16:19",
                      "nodeType": "VariableDeclaration",
                      "scope": 43454,
                      "src": "11285:24:19",
                      "stateVariable": false,
                      "storageLocation": "default",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      },
                      "typeName": {
                        "id": 43422,
                        "name": "uint256",
                        "nodeType": "ElementaryTypeName",
                        "src": "11285:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_uint256",
                          "typeString": "uint256"
                        }
                      },
                      "visibility": "internal"
                    }
                  ],
                  "id": 43428,
                  "initialValue": {
                    "arguments": [
                      {
                        "id": 43425,
                        "name": "owner",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43415,
                        "src": "11322:5:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      },
                      {
                        "id": 43426,
                        "name": "spender",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": 43417,
                        "src": "11329:7:19",
                        "typeDescriptions": {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      }
                    ],
                    "expression": {
                      "argumentTypes": [
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        },
                        {
                          "typeIdentifier": "t_address",
                          "typeString": "address"
                        }
                      ],
                      "id": 43424,
                      "name": "allowance",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43033,
                      "src": "11312:9:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_uint256_$",
                        "typeString": "function (address,address) view returns (uint256)"
                      }
                    },
                    "id": 43427,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "kind": "functionCall",
                    "lValueRequested": false,
                    "nameLocations": [],
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "11312:25:19",
                    "tryCall": false,
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "nodeType": "VariableDeclarationStatement",
                  "src": "11285:52:19"
                },
                {
                  "condition": {
                    "commonType": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    },
                    "id": 43435,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": false,
                    "lValueRequested": false,
                    "leftExpression": {
                      "id": 43429,
                      "name": "currentAllowance",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "referencedDeclaration": 43423,
                      "src": "11351:16:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      }
                    },
                    "nodeType": "BinaryOperation",
                    "operator": "!=",
                    "rightExpression": {
                      "expression": {
                        "arguments": [
                          {
                            "id": 43432,
                            "isConstant": false,
                            "isLValue": false,
                            "isPure": true,
                            "lValueRequested": false,
                            "nodeType": "ElementaryTypeNameExpression",
                            "src": "11376:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_type$_t_uint256_$",
                              "typeString": "type(uint256)"
                            },
                            "typeName": {
                              "id": 43431,
                              "name": "uint256",
                              "nodeType": "ElementaryTypeName",
                              "src": "11376:7:19",
                              "typeDescriptions": {}
                            }
                          }
                        ],
                        "expression": {
                          "argumentTypes": [
                            {
                              "typeIdentifier": "t_type$_t_uint256_$",
                              "typeString": "type(uint256)"
                            }
                          ],
                          "id": 43430,
                          "name": "type",
                          "nodeType": "Identifier",
                          "overloadedDeclarations": [],
                          "referencedDeclaration": -27,
                          "src": "11371:4:19",
                          "typeDescriptions": {
                            "typeIdentifier": "t_function_metatype_pure$__$returns$__$",
                            "typeString": "function () pure"
                          }
                        },
                        "id": 43433,
                        "isConstant": false,
                        "isLValue": false,
                        "isPure": true,
                        "kind": "functionCall",
                        "lValueRequested": false,
                        "nameLocations": [],
                        "names": [],
                        "nodeType": "FunctionCall",
                        "src": "11371:13:19",
                        "tryCall": false,
                        "typeDescriptions": {
                          "typeIdentifier": "t_magic_meta_type_t_uint256",
                          "typeString": "type(uint256)"
                        }
                      },
                      "id": 43434,
                      "isConstant": false,
                      "isLValue": false,
                      "isPure": true,
                      "lValueRequested": false,
                      "memberLocation": "11385:3:19",
                      "memberName": "max",
                      "nodeType": "MemberAccess",
                      "src": "11371:17:19",
                      "typeDescriptions": {
                        "typeIdentifier": "t_uint256",
                        "typeString": "uint256"
                      }
                    },
                    "src": "11351:37:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "id": 43453,
                  "nodeType": "IfStatement",
                  "src": "11347:243:19",
                  "trueBody": {
                    "id": 43452,
                    "nodeType": "Block",
                    "src": "11390:200:19",
                    "statements": [
                      {
                        "expression": {
                          "arguments": [
                            {
                              "commonType": {
                                "typeIdentifier": "t_uint256",
                                "typeString": "uint256"
                              },
                              "id": 43439,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": false,
                              "lValueRequested": false,
                              "leftExpression": {
                                "id": 43437,
                                "name": "currentAllowance",
                                "nodeType": "Identifier",
                                "overloadedDeclarations": [],
                                "referencedDeclaration": 43423,
                                "src": "11412:16:19",
                                "typeDescriptions": {
                                  "typeIdentifier": "t_uint256",
                                  "typeString": "uint256"
                                }
                              },
                              "nodeType": "BinaryOperation",
                              "operator": ">=",
                              "rightExpression": {
                                "id": 43438,
                                "name": "amount",
                                "nodeType": "Identifier",
                                "overloadedDeclarations": [],
                                "referencedDeclaration": 43419,
                                "src": "11432:6:19",
                                "typeDescriptions": {
                                  "typeIdentifier": "t_uint256",
                                  "typeString": "uint256"
                                }
                              },
                              "src": "11412:26:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_bool",
                                "typeString": "bool"
                              }
                            },
                            {
                              "hexValue": "45524332303a20696e73756666696369656e7420616c6c6f77616e6365",
                              "id": 43440,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": true,
                              "kind": "string",
                              "lValueRequested": false,
                              "nodeType": "Literal",
                              "src": "11440:31:19",
                              "typeDescriptions": {
                                "typeIdentifier": "t_stringliteral_3b6607e091cba9325f958656d2b5e0622ab7dc0eac71a26ac788cb25bc19f4fe",
                                "typeString": "literal_string \"ERC20: insufficient allowance\""
                              },
                              "value": "ERC20: insufficient allowance"
                            }
                          ],
                          "expression": {
                            "argumentTypes": [
                              {
                                "typeIdentifier": "t_bool",
                                "typeString": "bool"
                              },
                              {
                                "typeIdentifier": "t_stringliteral_3b6607e091cba9325f958656d2b5e0622ab7dc0eac71a26ac788cb25bc19f4fe",
                                "typeString": "literal_string \"ERC20: insufficient allowance\""
                              }
                            ],
                            "id": 43436,
                            "name": "require",
                            "nodeType": "Identifier",
                            "overloadedDeclarations": [
                              -18,
                              -18
                            ],
                            "referencedDeclaration": -18,
                            "src": "11404:7:19",
                            "typeDescriptions": {
                              "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                              "typeString": "function (bool,string memory) pure"
                            }
                          },
                          "id": 43441,
                          "isConstant": false,
                          "isLValue": false,
                          "isPure": false,
                          "kind": "functionCall",
                          "lValueRequested": false,
                          "nameLocations": [],
                          "names": [],
                          "nodeType": "FunctionCall",
                          "src": "11404:68:19",
                          "tryCall": false,
                          "typeDescriptions": {
                            "typeIdentifier": "t_tuple$__$",
                            "typeString": "tuple()"
                          }
                        },
                        "id": 43442,
                        "nodeType": "ExpressionStatement",
                        "src": "11404:68:19"
                      },
                      {
                        "id": 43451,
                        "nodeType": "UncheckedBlock",
                        "src": "11486:94:19",
                        "statements": [
                          {
                            "expression": {
                              "arguments": [
                                {
                                  "id": 43444,
                                  "name": "owner",
                                  "nodeType": "Identifier",
                                  "overloadedDeclarations": [],
                                  "referencedDeclaration": 43415,
                                  "src": "11523:5:19",
                                  "typeDescriptions": {
                                    "typeIdentifier": "t_address",
                                    "typeString": "address"
                                  }
                                },
                                {
                                  "id": 43445,
                                  "name": "spender",
                                  "nodeType": "Identifier",
                                  "overloadedDeclarations": [],
                                  "referencedDeclaration": 43417,
                                  "src": "11530:7:19",
                                  "typeDescriptions": {
                                    "typeIdentifier": "t_address",
                                    "typeString": "address"
                                  }
                                },
                                {
                                  "commonType": {
                                    "typeIdentifier": "t_uint256",
                                    "typeString": "uint256"
                                  },
                                  "id": 43448,
                                  "isConstant": false,
                                  "isLValue": false,
                                  "isPure": false,
                                  "lValueRequested": false,
                                  "leftExpression": {
                                    "id": 43446,
                                    "name": "currentAllowance",
                                    "nodeType": "Identifier",
                                    "overloadedDeclarations": [],
                                    "referencedDeclaration": 43423,
                                    "src": "11539:16:19",
                                    "typeDescriptions": {
                                      "typeIdentifier": "t_uint256",
                                      "typeString": "uint256"
                                    }
                                  },
                                  "nodeType": "BinaryOperation",
                                  "operator": "-",
                                  "rightExpression": {
                                    "id": 43447,
                                    "name": "amount",
                                    "nodeType": "Identifier",
                                    "overloadedDeclarations": [],
                                    "referencedDeclaration": 43419,
                                    "src": "11558:6:19",
                                    "typeDescriptions": {
                                      "typeIdentifier": "t_uint256",
                                      "typeString": "uint256"
                                    }
                                  },
                                  "src": "11539:25:19",
                                  "typeDescriptions": {
                                    "typeIdentifier": "t_uint256",
                                    "typeString": "uint256"
                                  }
                                }
                              ],
                              "expression": {
                                "argumentTypes": [
                                  {
                                    "typeIdentifier": "t_address",
                                    "typeString": "address"
                                  },
                                  {
                                    "typeIdentifier": "t_address",
                                    "typeString": "address"
                                  },
                                  {
                                    "typeIdentifier": "t_uint256",
                                    "typeString": "uint256"
                                  }
                                ],
                                "id": 43443,
                                "name": "_approve",
                                "nodeType": "Identifier",
                                "overloadedDeclarations": [],
                                "referencedDeclaration": 43412,
                                "src": "11514:8:19",
                                "typeDescriptions": {
                                  "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                                  "typeString": "function (address,address,uint256)"
                                }
                              },
                              "id": 43449,
                              "isConstant": false,
                              "isLValue": false,
                              "isPure": false,
                              "kind": "functionCall",
                              "lValueRequested": false,
                              "nameLocations": [],
                              "names": [],
                              "nodeType": "FunctionCall",
                              "src": "11514:51:19",
                              "tryCall": false,
                              "typeDescriptions": {
                                "typeIdentifier": "t_tuple$__$",
                                "typeString": "tuple()"
                              }
                            },
                            "id": 43450,
                            "nodeType": "ExpressionStatement",
                            "src": "11514:51:19"
                          }
                        ]
                      }
                    ]
                  }
                }
              ]
            },
            "documentation": {
              "id": 43413,
              "nodeType": "StructuredDocumentation",
              "src": "10880:270:19",
              "text": " @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n Does not update the allowance amount in case of infinite allowance.\n Revert if not enough allowance is available.\n Might emit an {Approval} event."
            },
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "_spendAllowance",
            "nameLocation": "11164:15:19",
            "parameters": {
              "id": 43420,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43415,
                  "mutability": "mutable",
                  "name": "owner",
                  "nameLocation": "11197:5:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43455,
                  "src": "11189:13:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43414,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "11189:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43417,
                  "mutability": "mutable",
                  "name": "spender",
                  "nameLocation": "11220:7:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43455,
                  "src": "11212:15:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43416,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "11212:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43419,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "11245:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43455,
                  "src": "11237:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43418,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "11237:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "11179:78:19"
            },
            "returnParameters": {
              "id": 43421,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "11275:0:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "internal"
          },
          {
            "id": 43466,
            "nodeType": "FunctionDefinition",
            "src": "12180:121:19",
            "nodes": [],
            "body": {
              "id": 43465,
              "nodeType": "Block",
              "src": "12299:2:19",
              "nodes": [],
              "statements": []
            },
            "documentation": {
              "id": 43456,
              "nodeType": "StructuredDocumentation",
              "src": "11602:573:19",
              "text": " @dev Hook that is called before any transfer of tokens. This includes\n minting and burning.\n Calling conditions:\n - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n will be transferred to `to`.\n - when `from` is zero, `amount` tokens will be minted for `to`.\n - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n - `from` and `to` are never both zero.\n To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]."
            },
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "_beforeTokenTransfer",
            "nameLocation": "12189:20:19",
            "parameters": {
              "id": 43463,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43458,
                  "mutability": "mutable",
                  "name": "from",
                  "nameLocation": "12227:4:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43466,
                  "src": "12219:12:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43457,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "12219:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43460,
                  "mutability": "mutable",
                  "name": "to",
                  "nameLocation": "12249:2:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43466,
                  "src": "12241:10:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43459,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "12241:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43462,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "12269:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43466,
                  "src": "12261:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43461,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "12261:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "12209:72:19"
            },
            "returnParameters": {
              "id": 43464,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "12299:0:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "internal"
          },
          {
            "id": 43477,
            "nodeType": "FunctionDefinition",
            "src": "12889:120:19",
            "nodes": [],
            "body": {
              "id": 43476,
              "nodeType": "Block",
              "src": "13007:2:19",
              "nodes": [],
              "statements": []
            },
            "documentation": {
              "id": 43467,
              "nodeType": "StructuredDocumentation",
              "src": "12307:577:19",
              "text": " @dev Hook that is called after any transfer of tokens. This includes\n minting and burning.\n Calling conditions:\n - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n has been transferred to `to`.\n - when `from` is zero, `amount` tokens have been minted for `to`.\n - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n - `from` and `to` are never both zero.\n To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]."
            },
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "_afterTokenTransfer",
            "nameLocation": "12898:19:19",
            "parameters": {
              "id": 43474,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 43469,
                  "mutability": "mutable",
                  "name": "from",
                  "nameLocation": "12935:4:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43477,
                  "src": "12927:12:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43468,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "12927:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43471,
                  "mutability": "mutable",
                  "name": "to",
                  "nameLocation": "12957:2:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43477,
                  "src": "12949:10:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 43470,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "12949:7:19",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 43473,
                  "mutability": "mutable",
                  "name": "amount",
                  "nameLocation": "12977:6:19",
                  "nodeType": "VariableDeclaration",
                  "scope": 43477,
                  "src": "12969:14:19",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 43472,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "12969:7:19",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "12917:72:19"
            },
            "returnParameters": {
              "id": 43475,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "13007:0:19"
            },
            "scope": 43478,
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "internal"
          }
        ],
        "abstract": false,
        "baseContracts": [
          {
            "baseName": {
              "id": 42898,
              "name": "Context",
              "nameLocations": [
                "1419:7:19"
              ],
              "nodeType": "IdentifierPath",
              "referencedDeclaration": 43777,
              "src": "1419:7:19"
            },
            "id": 42899,
            "nodeType": "InheritanceSpecifier",
            "src": "1419:7:19"
          },
          {
            "baseName": {
              "id": 42900,
              "name": "IERC20",
              "nameLocations": [
                "1428:6:19"
              ],
              "nodeType": "IdentifierPath",
              "referencedDeclaration": 43556,
              "src": "1428:6:19"
            },
            "id": 42901,
            "nodeType": "InheritanceSpecifier",
            "src": "1428:6:19"
          },
          {
            "baseName": {
              "id": 42902,
              "name": "IERC20Metadata",
              "nameLocations": [
                "1436:14:19"
              ],
              "nodeType": "IdentifierPath",
              "referencedDeclaration": 43581,
              "src": "1436:14:19"
            },
            "id": 42903,
            "nodeType": "InheritanceSpecifier",
            "src": "1436:14:19"
          }
        ],
        "canonicalName": "ERC20",
        "contractDependencies": [],
        "contractKind": "contract",
        "documentation": {
          "id": 42897,
          "nodeType": "StructuredDocumentation",
          "src": "230:1170:19",
          "text": " @dev Implementation of the {IERC20} interface.\n This implementation is agnostic to the way tokens are created. This means\n that a supply mechanism has to be added in a derived contract using {_mint}.\n For a generic mechanism see {ERC20PresetMinterPauser}.\n TIP: For a detailed writeup see our guide\n https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n to implement supply mechanisms].\n We have followed general OpenZeppelin Contracts guidelines: functions revert\n instead returning `false` on failure. This behavior is nonetheless\n conventional and does not conflict with the expectations of ERC20\n applications.\n Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n This allows applications to reconstruct the allowance for all accounts just\n by listening to said events. Other implementations of the EIP may not emit\n these events, as it isn't required by the specification.\n Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n functions have been added to mitigate the well-known issues around setting\n allowances. See {IERC20-approve}."
        },
        "fullyImplemented": true,
        "linearizedBaseContracts": [
          43478,
          43581,
          43556,
          43777
        ],
        "name": "ERC20",
        "nameLocation": "1410:5:19",
        "scope": 43479,
        "usedErrors": [],
        "usedEvents": [
          43490,
          43499
        ]
      }
    ],
    "license": "MIT"
  },
  "id": 19
}