// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /// @title IWETH9 interface IWETH9 is IERC20 { /// @notice Deposit ether to get wrapped ether function deposit() external payable; /// @notice Withdraw wrapped ether to get ether function withdraw(uint256) external; }