public com.google.cloud.speech.v1p1beta1.RecognitionMetadata getMetadata() {
    return metadata_ == null
        ? com.google.cloud.speech.v1p1beta1.RecognitionMetadata.getDefaultInstance()
        : metadata_;
  }
public com . google . cloud . speech . v1p1beta1 . RecognitionMetadata getMetadata ( ) { return metadata_ == null ? com . google . cloud . speech . v1p1beta1 . RecognitionMetadata . getDefaultInstance ( ) : metadata_ ; }
<pre>
*Optional* Metadata regarding this request.
</pre>

<code>.google.cloud.speech.v1p1beta1.RecognitionMetadata metadata = 9;</code>