@java.lang.Override
    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.setUnknownFields(unknownFields);
    }
<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>

@param value The bytes for nextPageToken to set.
@return This builder for chaining.
java-telcoautomation/proto-google-cloud-telcoautomation-v1alpha1/src/main/java/com/google/cloud/telcoautomation/v1alpha1/ListPublicBlueprintsResponse.java