export declare const windowExists: (Window & typeof globalThis) | {
    sr: string;
    __PRELOADED_STATE__: {};
    addEventListener: () => void;
    location: {
        hostname: string;
        origin: string;
        href: string;
        reload: () => void;
    };
    localStorage: {
        setItem: (key: any, value: any) => void;
        getItem: (key: any) => string;
    };
};
export declare const documentExists: Document | {
    getElementById: () => void;
};