import { BaseWidget } from '../base-widget';
import { NgAisInstantSearch, FacetSortByStringOptions } from '../instantsearch/instantsearch';
import { NgAisIndex } from '../index-widget/index-widget';
export declare type MenuItem = {
    value: string;
    label: string;
    count: number;
    isRefined: boolean;
};
export declare type MenuState = {
    items: MenuItem[];
    refine: Function;
    createURL: Function;
    isShowingMore: boolean;
    canToggleShowMore: boolean;
    toggleShowMore: Function;
};
export declare class NgAisMenu extends BaseWidget {
    parentIndex: NgAisIndex;
    instantSearchInstance: NgAisInstantSearch;
    showMoreLabel: string;
    showLessLabel: string;
    attribute: string;
    showMore?: boolean;
    limit?: number;
    showMoreLimit?: number;
    sortBy?: FacetSortByStringOptions[] | ((a: MenuItem, b: MenuItem) => number);
    transformItems?: <U extends MenuItem>(items: MenuItem[]) => U[];
    state: MenuState;
    get isHidden(): boolean;
    get showMoreClass(): string;
    constructor(parentIndex: NgAisIndex, instantSearchInstance: NgAisInstantSearch);
    ngOnInit(): void;
    handleClick(event: MouseEvent, value: string): void;
}