import { ExtractPropTypes } from 'vue';
import { RegionModel, RegionValues, RegionLanguage, RegionLevel, RegionUIOptions, RegionProps, RegionEmits } from '../types';
/**
 * 响应 `v-model` 与 `change` 事件
 *
 * 要求组件中已定义 `update:modelValue` 与 `change`
 * @param {function} emit 事件响应对象
 */
export declare function useEvent(emit?: RegionEmits): {
    emitUpdateModelValue: (data: RegionValues) => void | undefined;
    emitUpdateNames: (data: string[]) => void | undefined;
    emitChange: (data: RegionModel) => void | undefined;
};
export declare function useRegionUI(props: ExtractPropTypes<RegionProps>, emit?: RegionEmits, options?: RegionUIOptions): {
    state: import('vue').Ref<{
        province: {
            key: string | undefined;
            name: string | undefined;
            list: {
                key?: string | undefined;
                value?: string | undefined;
            }[];
            enable: boolean;
            getModel: () => import('..').RegionItem | undefined;
        };
        city: {
            key: string | undefined;
            name: string | undefined;
            list: {
                key?: string | undefined;
                value?: string | undefined;
            }[];
            enable: boolean;
            getModel: () => import('..').RegionItem | undefined;
        };
        area: {
            key: string | undefined;
            name: string | undefined;
            list: {
                key?: string | undefined;
                value?: string | undefined;
            }[];
            enable: boolean;
            getModel: () => import('..').RegionItem | undefined;
        };
        town: {
            key: string | undefined;
            name: string | undefined;
            list: {
                key?: string | undefined;
                value?: string | undefined;
            }[];
            enable: boolean;
            getModel: () => import('..').RegionItem | undefined;
        };
    }, {
        province: import('..').RegionLevelData;
        city: import('..').RegionLevelData;
        area: import('..').RegionLevelData;
        town: import('..').RegionLevelData;
    } | {
        province: {
            key: string | undefined;
            name: string | undefined;
            list: {
                key?: string | undefined;
                value?: string | undefined;
            }[];
            enable: boolean;
            getModel: () => import('..').RegionItem | undefined;
        };
        city: {
            key: string | undefined;
            name: string | undefined;
            list: {
                key?: string | undefined;
                value?: string | undefined;
            }[];
            enable: boolean;
            getModel: () => import('..').RegionItem | undefined;
        };
        area: {
            key: string | undefined;
            name: string | undefined;
            list: {
                key?: string | undefined;
                value?: string | undefined;
            }[];
            enable: boolean;
            getModel: () => import('..').RegionItem | undefined;
        };
        town: {
            key: string | undefined;
            name: string | undefined;
            list: {
                key?: string | undefined;
                value?: string | undefined;
            }[];
            enable: boolean;
            getModel: () => import('..').RegionItem | undefined;
        };
    }>;
    lang: RegionLanguage;
    loading: import('vue').Ref<boolean, boolean>;
    isComplete: () => boolean;
    regionText: import('vue').ComputedRef<string>;
    hasCity: import('vue').ComputedRef<boolean>;
    hasArea: import('vue').ComputedRef<boolean>;
    hasTown: import('vue').ComputedRef<boolean>;
    reset: () => void;
    setLevel: (level: RegionLevel, key?: string) => Promise<void>;
    setupTownListLoader: (fn: import('..').AsyncLevelListLoader) => void;
};