declare class Collapse {
    constructor(container: any, options?: {});
    settings: {
        accordion: boolean;
        initClass: string;
        activeClass: string;
        heightClass: string;
    };
    _container: any;
    _panels: any;
    events: {
        openingPanel: CustomEvent<any>;
        openedPanel: CustomEvent<any>;
        closingPanel: CustomEvent<any>;
        closedPanel: CustomEvent<any>;
    };
    _setPanelHeight(panel: any): void;
    _removePanelHeight(panel: any): void;
    open(panel: any): void;
    _afterOpen(panel: any): void;
    _endOpen(panel: any): void;
    close(panel: any): void;
    _afterClose(panel: any): void;
    _endClose(panel: any): void;
    toggle(panel: any): void;
    openSinglePanel(panel: any): void;
    openAll(): void;
    closeAll(): void;
    _attachEvents(): void;
    init(): this;
}