https://github.com/code-423n4/2022-05-factorydao/blob/e22a562c01c533b8765229387894cc0cb9bed116/contracts/FixedPricePassThruGate.sol#L53
https://github.com/code-423n4/2022-05-factorydao/blob/e22a562c01c533b8765229387894cc0cb9bed116/contracts/SpeedBumpPriceGate.sol#L79
