/// <reference types="react" />
import { IRegistryItem } from '~/interfaces';
export declare class Registry {
    boxRef: React.RefObject<HTMLDivElement>;
    map: Map<number, IRegistryItem>;
    private selectedLength;
    constructor(boxRef: React.RefObject<HTMLDivElement>);
    register(item: IRegistryItem): void;
    unregister(id: number): void;
    getSelected: () => any[];
}
export declare const RegistryContext: import("react").Context<Registry>;