/**
 * JSON-LD @context loader.
 *
 * @param url The URL of the LD @context.
 * @param options Options.
 * @returns The LD document and the final URL after following redirects.
 */
export declare function customLdContextLoader(url: string, options: any): Promise<{
    document: Record<string, unknown>;
    documentUrl: string;
}>;