def METHOD_NAME(self) -> int:
    length_in_bits: int = super().METHOD_NAME()
    _value: ModbusPDUReadWriteMultipleHoldingRegistersRequest = self
    # Simple field (readStartingAddress)
    length_in_bits += 16
    # Simple field (readQuantity)
    length_in_bits += 16
    # Simple field (writeStartingAddress)
    length_in_bits += 16
    # Simple field (writeQuantity)
    length_in_bits += 16
    # Implicit Field (byteCount)
    length_in_bits += 8
    # Array field
    if self.value != None:
        length_in_bits += 8 * len(self.value)
    return length_in_bits