code: function(component, eventNames) {
            eventNames = eventNames.trim().split(/\s+/);
  
            for (var i = 0, l = eventNames.length; i < l; i++) {
              var eventName = eventNames[i];
              this._registerEventHandler(component, eventName);
            }
          }
docs: Register event handlers for attributes.
  
  @param {Object} component
  @param {String} eventNames