public Builder clearSpeechEndTimeout() {
        bitField0_ = (bitField0_ & ~0x00000002);
        speechEndTimeout_ = null;
        if (speechEndTimeoutBuilder_ != null) {
          speechEndTimeoutBuilder_.dispose();
          speechEndTimeoutBuilder_ = null;
        }
        onChanged();
        return this;
      }
<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