@java.lang.Override
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }
<pre>
Duration to timeout the stream after speech ends. If this is set and no
speech is detected in this duration after speech was detected, the server
will close the stream.
</pre>

<code>.google.protobuf.Duration speech_end_timeout = 2;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/StreamingRecognitionFeatures.java