import React from 'react';
export declare enum OverlayKeys {
    localization = "localization",
    themeOptionKey = "themeOptionKey",
    leaf = "leaf",
    pageRoot = "pageRoot"
}
export declare const useOverlayRef: <T>(key: OverlayKeys, initialValue: T) => React.MutableRefObject<T>;
export declare const useOverlayLeaf: (key: string) => void;
export declare const useOverlayPageRoot: () => void;
export declare const OverlayProfiler: ({ onFiberUpdateListener, children, }: {
    onFiberUpdateListener?: any;
    children: React.ReactNode;
}) => React.FunctionComponentElement<React.ProfilerProps> | React.FunctionComponentElement<{
    children?: React.ReactNode | undefined;
}>;