/**
 * 管理所有picker实例，提供外部统一控制picker的显示和隐藏
 */
interface PickerInstance {
    hide: () => void;
}
export declare function registerPicker(picker: HTMLElement & PickerInstance): void;
export declare function unregisterPicker(picker: HTMLElement & PickerInstance): void;
export declare function closeAllPicker(): void;
export declare function getAllPicker(): Map<HTMLElement & PickerInstance, boolean>;
export {};