/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { VtsSafeAny } from '@ui-vts-kit/ng-vts/core/types';
export type VtsCascaderExpandTrigger = 'click' | 'hover';
export type VtsCascaderTriggerType = 'click' | 'hover';
export type VtsCascaderSize = 'sm' | 'md' | 'lg' | 'xl';
export type VtsCascaderFilter = (searchValue: string, path: VtsCascaderOption[]) => boolean;
export type VtsCascaderSorter = (a: VtsCascaderOption[], b: VtsCascaderOption[], inputValue: string) => number;
export interface VtsCascaderOption {
    value?: VtsSafeAny;
    label?: string;
    title?: string;
    disabled?: boolean;
    loading?: boolean;
    isLeaf?: boolean;
    parent?: VtsCascaderOption;
    children?: VtsCascaderOption[];
    [key: string]: VtsSafeAny;
}
export interface VtsCascaderSearchOption extends VtsCascaderOption {
    path: VtsCascaderOption[];
}
export interface VtsShowSearchOptions {
    filter?: VtsCascaderFilter;
    sorter?: VtsCascaderSorter;
}
export declare function isShowSearchObject(options: VtsShowSearchOptions | boolean): options is VtsShowSearchOptions;
/**
 * To avoid circular dependency, provide an interface of `VtsCascaderComponent`
 * for `VtsCascaderService`.
 */
export interface VtsCascaderComponentAsSource {
    inputValue: string;
    vtsShowSearch: VtsShowSearchOptions | boolean;
    vtsLabelProperty: string;
    vtsValueProperty: string;
    vtsChangeOnSelect: boolean;
    vtsChangeOn?(option: VtsCascaderOption, level: number): boolean;
    vtsLoadData?(node: VtsCascaderOption, index: number): PromiseLike<VtsSafeAny>;
}