this._parent.addClass(CLASS_NAME_COLLAPSED).removeClass(CLASS_NAME_COLLAPSING)\n      })\n\n    this._parent.find(`> ${SELECTOR_CARD_HEADER} ${this._settings.collapseTrigger} .${this._settings.collapseIcon}`)\n      .addClass(this._settings.expandIcon)\n      .removeClass(this._settings.collapseIcon)\n\n    this._element.trigger($.Event(EVENT_COLLAPSED), this._parent)\n  }\n\n  expand() {\n    this._parent.addClass(CLASS_NAME_EXPANDING).children(`${SELECTOR_CARD_BODY}, ${SELECTOR_CARD_FOOTER}`)\n...