// SPDX-License-Identifier: MIT pragma solidity >=0.7.4; interface IWETH { /// @dev Deposits native ETH into the contract and mints WETH function deposit() external payable; /// @dev Transfers WETH to another account function transfer(address to, uint256 value) external returns (bool); /// @dev Burns WETH from msg.sender and send back native ETH function withdraw(uint256) external; }