public static Builder newBuilder(
      com.google.cloud.speech.v1.LongRunningRecognizeResponse prototype) {
    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
  }
<pre>
The ID associated with the request. This is a unique ID specific only to
the given request.
</pre>

<code>int64 request_id = 9;</code>

@return The requestId.
java-speech/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/LongRunningRecognizeResponse.java