@java.lang.Override
  public com.google.protobuf.ByteString getPageTokenBytes() {
    java.lang.Object ref = pageToken_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      pageToken_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }
<pre>
A token identifying the page of results to return.

To request the first page results, page_token must be empty. To
request the next page of results, page_token must be the value of
[next_page_token][google.cloud.tasks.v2beta3.ListQueuesResponse.next_page_token]
returned from the previous call to
[ListQueues][google.cloud.tasks.v2beta3.CloudTasks.ListQueues] method. It
is an error to switch the value of the
[filter][google.cloud.tasks.v2beta3.ListQueuesRequest.filter] while
iterating through pages.
</pre>

<code>string page_token = 4;</code>

@return The bytes for pageToken.
java-tasks/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/ListQueuesRequest.java