@java.lang.Override
  public final boolean isInitialized() {
    byte isInitialized = memoizedIsInitialized;
    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

    memoizedIsInitialized = 1;
    return true;
  }
<pre>
A page token, received from a previous `ListPhraseSet` call.
Provide this to retrieve the subsequent page.

When paginating, all other parameters provided to `ListPhraseSet` must
match the call that provided the page token.
</pre>

<code>string page_token = 3;</code>

@return The bytes for pageToken.
java-speech/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/ListPhraseSetRequest.java