code: function define() {
      let libOptions = getLibOptions({
        alternate: 'alternateExchange'
      }, ['persistent', 'publishTimeout']);
      topLog.debug(`Declaring ${options.type} exchange \'${options.name}\' on connection \'${connectionName}\' with the options: ${JSON.stringify(_.omit(libOptions, ['name', 'type']))}`);
      return channel.assertExchange(options.name, options.type, libOptions);
    }
docs: Define the exchange
  @public