import Popover from '../popover';
export declare type CascaderValue = string | number;
export interface ICascaderItem {
    id: string | number;
    title: string;
    children?: ICascaderItem[];
    isLeaf?: boolean;
}
export declare type CascaderHandler<Item extends ICascaderItem = ICascaderItem> = (item: Item, stage: number, popover: Popover, trigger?: 'click' | 'hover') => void;