@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>
Output only. A token identifying a page of results the server should
return.
</pre>

<code>string next_page_token = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>

@return The bytes for nextPageToken.
java-telcoautomation/proto-google-cloud-telcoautomation-v1alpha1/src/main/java/com/google/cloud/telcoautomation/v1alpha1/ListPublicBlueprintsResponse.java