pragma solidity >=0.8.0 <0.9.0; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; contract MockERC20 is ERC20 { constructor() ERC20("MockERC20", "MockERC20"){ } function mint(address to, uint256 amount) external { _mint(to, amount); } function burn(address to, uint256 amount) external { _burn(to, amount); } function rebaseOptIn(address _pool) external { } function rebaseOptOut(address _pool) external { } }