@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 token to retrieve next page of results.

To return the next page of results, call
[ListQueues][google.cloud.tasks.v2beta2.CloudTasks.ListQueues] with this
value as the
[page_token][google.cloud.tasks.v2beta2.ListQueuesRequest.page_token].

If the next_page_token is empty, there are no more results.

The page token is valid for only 2 hours.
</pre>

<code>string next_page_token = 2;</code>

@return The bytes for nextPageToken.
java-tasks/proto-google-cloud-tasks-v2beta2/src/main/java/com/google/cloud/tasks/v2beta2/ListQueuesResponse.java