public static com.google.cloud.speech.v2.UpdatePhraseSetRequest parseFrom(
      com.google.protobuf.ByteString data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }
<pre>
If set, validate the request and preview the updated PhraseSet, but do not
actually update it.
</pre>

<code>bool validate_only = 4;</code>

@return The validateOnly.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/UpdatePhraseSetRequest.java