Returns the message api key number.

Receive a binary in the kafka wire format and deserialize it into a map.

Response content fields:

• throttle_time_ms: The duration in milliseconds for which the request was throttled due to a quota violation, or zero if the request did not violate any quota. (int32 | versions 0+)

• error_code: The error code, or 0 if there was no error. (int16 | versions 0+)

• producer_id: The current producer id. (int64 | versions 0+)

• producer_epoch: The current epoch associated with the producer id. (int16 | versions 0+)

Returns the current max supported version of this message.

Returns the current min supported version of this message.

Receives a map and serialize it to kafka wire format of the given version.

Input content fields:

• transactional_id: The transactional id, or null if the producer is not transactional. (string | versions 0+)

• transaction_timeout_ms: The time in ms to wait before aborting idle transactions sent by this producer. This is only relevant if a TransactionalId has been defined. (int32 | versions 0+)

• producer_id: The producer id. This is used to disambiguate requests if a transactional id is reused following its expiration. (int64 | versions 3+)

• producer_epoch: The producer's current epoch. This will be checked against the producer epoch on the broker, and the request will return an error if they do not match. (int16 | versions 3+)