import React from 'react';
export interface Action {
    type: 'add' | 'remove';
    payload: Partial<Payload>;
}
export interface Payload {
    id: string;
    portal: React.ReactPortal;
}
export declare function connect(id: string, portal: React.ReactPortal): void;
export declare function disconnect(id: string): void;
export declare function isActive(): boolean;
export declare function getProvider(): React.FC<{}>;