@java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }
<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