modifier onlyReadyForWithdrawal(uint256 _vaultId) { // @audit Repeatedly checked when withdraw multiple tokens
    if (_readyForWithdrawal[_vaultId] != msg.sender) {
        revert NotApprovedError(_vaultId);
    }
    _;
}
function withdrawERC721s(uint256 _vaultId, address[] calldata _collections, uint256[] calldata _tokenIds)
    external
{
    ...
    for (uint256 i = 0; i < _collections.length;) {
        _withdrawERC721(_vaultId, _collections[i], _tokenIds[i]);
        unchecked {
            ++i;
        }
    }
}

function _withdrawERC721(uint256 _vaultId, address _collection, uint256 _tokenId)
    private
    onlyReadyForWithdrawal(_vaultId)
{
    ...
}
