/**
 * OverlayStack-storage for the stack of layers (overlays).
 *
 * The stack is necessary for understanding whether there are open overlays and whether they contain a background.
 * Is responsible for storing the stack and provides methods for changing the stack. It works based on the Context API.
 * Allows you to get information about the layer stack from any part of the app using OVerlayStack.Consumer
 * and the withoverlaystack HOC decorator
 */
import * as React from 'react';
import { WithOverlayStack, IRenderProps } from './OverlayStack.types';
/**
 * HOC decorator for getting the stack and methods for changing the stack.
 *
 * StackOverlay.Provider must be enabled to use it
 */
export declare const withOverlayStack: WithOverlayStack;
declare class Provider extends React.PureComponent<{}, IRenderProps> {
    private add;
    private remove;
    private update;
    state: IRenderProps;
    render(): JSX.Element;
}
export declare const OverlayStack: {
    Consumer: React.Consumer<IRenderProps | null>;
    Provider: typeof Provider;
};
export {};