import { District, DistrictLevel } from './District';
/**
 * 处理中国行政区域相关的问题
 * - 省市县三级结构，严格分层
 * - 存在没有市的县
 */
export declare class DistrictCenter {
    static chinaAdcode: string;
    private _adcodeToRecord;
    get country(): District;
    constructor();
    getProvinces(): District[];
    getCities(): District[];
    getCounties(): District[];
    forEach(fn: (record: District) => void): void;
    getByAdcode(adcode: string): District | undefined;
    getParent(adcode: string): District | undefined;
    getOwnerProvince(adcode: string): District | undefined;
    getOwnerCity(adcode: string): District | undefined;
    getOwnerCounty(adcode: string): District | undefined;
    getOwner(adcode: string, level: DistrictLevel): District | undefined;
    getLeafs(): District[];
}