See link for a detailed discussion. code-423n4/2022-01-xdefi-findings#128
require( callersLength == _targets.length && callersLength == _functionSigs.length && callersLength == _enables.length, "yw" ); // The size of arrays should be equal https://github.com/code-423n4/2022-10-zksync/tree/main/ethereum/contracts/common/AllowList.sol#L96-L101
require(version == 1 && _bytecodeHash[1] == bytes1(0), "zf"); // Incorrectly formatted bytecodeHash https://github.com/code-423n4/2022-10-zksync/tree/main/ethereum/contracts/common/L2ContractHelper.sol#L65