import { Response } from "./response.js";
/**
 * HTTP client interface.
 *
 * WIT:
 * ```
 * interface client {
 *   use types.{request, response, error-code};
 *   send: async func(request) -> result<response, error-code>;
 * }
 * ```
 */
export declare const client: {
    /**
     * Send an HTTP request and return a response.
     *
     * @param {Request} req
     * @returns {Promise<Response>}
     * @throws {HttpError}
     */
    send(req: any): Promise<Response>;
};