text: 'use strict';
  
  exports.init = Symbol.for('ClusterClient#init');
  exports.logger = Symbol.for('ClusterClient#logger');
  exports.isReady = Symbol.for('ClusterClient#isReady');
  exports.innerClient = Symbol.for('ClusterClient#innerClient');
  exports.subscribe = Symbol.for('ClusterClient#subscribe');
  exports.unSubscribe = Symbol.for('ClusterClient#unSubscribe');
  exports.publish = Symbol.for('ClusterClient#publish');
  exports.invoke = Symbol.for('ClusterClient#invoke');
  exports.subInfo = Symbol.for('ClusterClient#subInfo');
  exports.pubInfo = Symbol.for('ClusterClient#pubInfo');
  exports.closeHandler = Symbol.for('ClusterClient#closeHandler');
  exports.close = Symbol.for('ClusterClient#close');
  exports.subscribeMethodName = Symbol.for('ClusterClient#subscribeMethodName');
  exports.unSubscribeMethodName = Symbol.for('ClusterClient#unSubscribeMethodName');
  exports.publishMethodName = Symbol.for('ClusterClient#publishMethodName');
  exports.closeByUser = Symbol.for('ClusterClient#closeByUser');
  exports.singleMode = Symbol.for('ClusterClient#singleMode');
  exports.createClient = Symbol.for('ClusterClient#createClient');
  