public com.google.protobuf.Timestamp.Builder getLastUpdateTimeBuilder() {
      bitField0_ |= 0x00000004;
      onChanged();
      return getLastUpdateTimeFieldBuilder().getBuilder();
    }
<pre>
Time of the most recent processing update.
</pre>

<code>.google.protobuf.Timestamp last_update_time = 3;</code>
java-speech/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/LongRunningRecognizeMetadata.java