@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (((bitField0_ & 0x00000001) != 0)) {
      output.writeMessage(2, getMetadata());
    }
    for (int i = 0; i < results_.size(); i++) {
      output.writeMessage(3, results_.get(i));
    }
    getUnknownFields().writeTo(output);
  }
<pre>
Metadata about the recognition.
</pre>

<code>.google.cloud.speech.v2.RecognitionResponseMetadata metadata = 2;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/RecognizeResponse.java