pragma solidity ^0.5.0; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/math/SafeMath.sol"; import "./ILendingPoolAddressesProvider.sol"; interface IFlashLoanReceiver { function executeOperation( address _reserve, uint256 _amount, uint256 _fee, bytes calldata _params ) external; }