/**
 * Check if a request has already been made for a given url to avoid duplicate requests
 * @param url
 * @returns
 */
export declare const hasRequested: (url: string) => boolean;
export declare const getRequested: (url: string) => any;
export declare const stashRequested: (url: string, value: Promise<any>) => void;
export declare const clearRequested: (url: string) => void;
