/**
 * Set the proxy URL function used throughout the library.
 * @param {(url: string) => string} fn
 */
export function setProxyUrl(fn: (url: string) => string): void;
/**
 * Get the proxied version of a URL.
 * @param {string} url
 * @returns {string}
 */
export function proxyUrl(url: string): string;