public com.google.protobuf.ByteString getPhraseSetReferencesBytes(int index) {
      return phraseSetReferences_.getByteString(index);
    }
<pre>
A collection of phrase set resource names to use.
</pre>

<code>repeated string phrase_set_references = 2 [(.google.api.resource_reference) = { ... }
</code>

@param index The index of the value to return.
@return The bytes of the phraseSetReferences at the given index.
java-speech/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/SpeechAdaptation.java