/**
 * Fetch a url as as buffer.
 * @param url The url to fetch.
 * @returns The buffer.
 */
export declare function fetchBuffer(url: string): Promise<Buffer>;
/**
 * Fetch a url as as text.
 * @param url The url to fetch.
 * @returns The text.
 */
export declare function fetchText(url: string): Promise<string>;
/**
 * Fetch a url as a JSON object.
 * @param url The url to fetch.
 * @returns The object.
 */
export declare function fetchJson<T>(url: string): Promise<T>;