The top-level message returned from the StreamingDetectIntent
method.
Multiple response messages can be returned in order:
If the input was set to streaming audio, the first one or more
messages contain recognition_result. Each recognition_result
represents a more complete transcript of what the user said. The last
recognition_result has is_final set to true.
The next message contains response_id, query_result and
optionally webhook_status if a WebHook was called.
The result of speech recognition.
Specifies the status of the webhook request.
The config used by the speech synthesizer to generate the
output audio.
