export declare const useHeaderHeight: () => [number, import("react").Dispatch<import("react").SetStateAction<number>>], HeaderHeightProvider: ({ children, initialValue, }: {
    children?: React.ReactNode;
    initialValue?: number | undefined;
}) => import("react").FunctionComponentElement<import("react").ProviderProps<[number, import("react").Dispatch<import("react").SetStateAction<number>>] | undefined>>;
export declare const useSyncHeaderHeight: () => {
    containerRef: import("react").RefObject<HTMLDivElement | null>;
};
