/**
 * @returns {RequestInit}
 */
export function request(): RequestInit;
/**
 * @param {URL} id - identifier of activitypub object to fetch
 * @param {RequestInit & { fetch?: typeof globalThis.fetch }} [options]
 * @returns {Promise<Response>}
 */
export function fetch(id: URL, options?: (RequestInit & {
    fetch?: typeof globalThis.fetch | undefined;
}) | undefined): Promise<Response>;
/** @param {Array<string>|string} types */
export function hasAs2ActivityType(types: Array<string> | string): true | undefined;
export const activitypubMediaType: "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"";
export const activityStreams2ActivityTypes: Set<string>;
declare namespace _default {
    export { fetch };
    export { request };
}
export default _default;
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