what is the appropriate return value for the write method in a destination connector

The

write

operation in a destination connector is responsible for reading input data from the source and writing it to the underlying destination. It takes as input the config file used to run the connector and the configured catalog, which describes the schema of the incoming data and how it should be written to the destination. The

write

operation returns two things: 1. Data written to the underlying destination. 2. `AirbyteMessage`s of type

AirbyteStateMessage

, written to stdout to indicate which records have been written so far during a sync. It's important to output these messages when possible in order to avoid re-extracting messages from the source. For Java destination connectors, you implement the

write

operation by implementing the

getConsumer

method in your generated

<Name>Destination.java

file. For Python destination connectors, you implement the

write

operation by implementing the

write

method in your generated

destination.py

file. For more information, you can refer to the [Java destination tutorial](https://docs.airbyte.com/connector-development/tutorials/building-a-java-destination) and the [Python destination tutorial](https://docs.airbyte.com/connector-development/tutorials/building-a-python-destination).