export declare type ToggleSate = 'opened' | 'closed';
export declare class Toggler {
    state: ToggleSate;
    private onOpen;
    private onClose;
    readonly isOpened: boolean;
    readonly isClosed: boolean;
    constructor(args?: {
        onOpen?: () => boolean;
        onClose?: () => boolean;
    });
    toggle(): void;
    open(): void;
    close(): void;
}