def METHOD_NAME(self) -> int:
    length_in_bits: int = super().METHOD_NAME()
    _value: ModbusPDUMaskWriteHoldingRegisterResponse = self
    # Simple field (referenceAddress)
    length_in_bits += 16
    # Simple field (andMask)
    length_in_bits += 16
    # Simple field (orMask)
    length_in_bits += 16
    return length_in_bits