/// <reference types="react" />
export declare const useHeaderHeight: ({ hasSponsoredBanners, isSponsored, isShowingSiteWideBanner, isMobile, }: {
    hasSponsoredBanners?: boolean;
    isSponsored?: boolean;
    isShowingSiteWideBanner?: boolean;
    isMobile?: boolean;
}) => {
    defaultHeaderHeight: number;
    headerHeight: number;
    headerBottom: number;
    headerRef: import("react").MutableRefObject<HTMLDivElement>;
};
