code: function ProcessDataRequest(deviceKey, channels) {
      ProcessDataRequest['super_'].call(this, Procedures.GETPROCESSDATA);
  
      /**
       * @property deviceKey
       * @type {String}
       * @private
       */
      this.deviceKey = deviceKey;
      /**
       * @property channels
       * @type {Array}
       * @private
       */
      this.channels = Array.isArray(channels) ? channels : [channels];
  }
docs: Implementation 
  @class ProcessDataRequest
  @constructor
  @extends Request
  @param {String} deviceKey
  @param {String|Array} channels