pragma solidity ^0.7.0; import { TokenInterface } from "../../../common/interfaces.sol"; interface OneInchInterace { function swap( TokenInterface fromToken, TokenInterface toToken, uint256 fromTokenAmount, uint256 minReturnAmount, uint256 guaranteedAmount, address payable referrer, address[] calldata callAddresses, bytes calldata callDataConcat, uint256[] calldata starts, uint256[] calldata gasLimitsAndValues ) external payable returns (uint256 returnAmount); } struct OneInchData { TokenInterface sellToken; TokenInterface buyToken; uint _sellAmt; uint _buyAmt; uint unitAmt; bytes callData; }