declare const win: (Window & typeof globalThis) | undefined;
export declare const navigator: Navigator | undefined;
export declare const document: Document | undefined;
export declare const location: Location | undefined;
export declare const fetch: typeof globalThis.fetch | undefined;
export declare const XMLHttpRequest: {
    new (): XMLHttpRequest;
    prototype: XMLHttpRequest;
    readonly UNSENT: 0;
    readonly OPENED: 1;
    readonly HEADERS_RECEIVED: 2;
    readonly LOADING: 3;
    readonly DONE: 4;
} | undefined;
export declare const AbortController: {
    new (): AbortController;
    prototype: AbortController;
} | undefined;
export declare const CompressionStream: {
    new (format: CompressionFormat): CompressionStream;
    prototype: CompressionStream;
} | undefined;
export declare const userAgent: string | undefined;
export declare function isBrowserOnline(): boolean;
export { win as window };