code: function (domElement, event, isParent) {
              var parent = (!isParent) ? domElement.parentNode : domElement;
              var domUtil = ariaUtilsDom;
              var label = parent.firstChild.textContent || parent.firstChild.innerText;
              domUtil.removeElement(parent);
              this._removeValue(label);
              if (event && event.type == "click") {
                  this.getTextInputField().focus();
  
              }
  
          }
docs: To remove suggestion on click of close
  @protected
  @param {aria.utils.HTML} domElement
  @param {aria.widgets.form.MultiAutoComplete} ref
  @param {aria.utils.Event} event
  @param {Boolean} if current element is a parent element itself