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+)

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:

• client_instance_id: Unique id for this client instance. (uuid | versions 0+)

• subscription_id: Unique identifier for the current subscription. (int32 | versions 0+)

• terminating: Client is terminating the connection. (bool | versions 0+)

• compression_type: Compression codec used to compress the metrics. (int8 | versions 0+)

• metrics: Metrics encoded in OpenTelemetry MetricsData v1 protobuf format. (bytes | versions 0+)