public com.google.protobuf.ByteString getPhraseSetBytes() {
      java.lang.Object ref = "";
      if (valueCase_ == 1) {
        ref = value_;
      }
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        if (valueCase_ == 1) {
          value_ = b;
        }
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
<pre>
The name of an existing PhraseSet resource. The user must have read
access to the resource and it must not be deleted.
</pre>

<code>string phrase_set = 1 [(.google.api.resource_reference) = { ... }</code>

@return The bytes for phraseSet.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/SpeechAdaptation.java