export type WindowType = typeof window;
export declare const win: typeof window | undefined;
export declare const doc: typeof window.document | undefined;
export declare const nav: typeof navigator | undefined;
export declare const loc: typeof location | undefined;
export declare const perf: any;
export declare const encodeURIComponent: ((arg: string) => string) | undefined;
export declare const fetch: (((input: RequestInfo | URL, init?: RequestInit) => Promise<Response>) & typeof globalThis.fetch) | undefined;
export declare const localStorage: Storage | null;
export declare const sessionStorage: Storage | null;
/**
 * Exposed via this module to enable testing.
 */
export declare function sendBeacon(url: string, data: string): boolean;