// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.26;

interface ICallbackVerifier {
    error UnauthorizedCaller(string exchange, address sender);

    /**
     * @dev This method should revert if the sender is not a verified sender of the exchange.
     */
    function verifyCallback(
        address sender,
        bytes calldata data
    ) external returns (uint256 amountOwed, address tokenOwed);
}