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: 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+)

• error_message: The top-level error message, or null if there was no top-level error. (string | 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:

• broker_id: The broker ID to unregister. (int32 | versions 0+)