/**
 * FetchUtils — Scope class for fetch client and interceptors.
 *
 * Owns scoped interceptor Sets that replace the module-level global Sets.
 * Each WithScope creates a fresh FetchUtils, keeping interceptors
 * isolated between SSR requests.
 *
 * Prefer `useUtils()` in app code (MatesUtils delegates here).
 *
 * @example
 * ```ts
 * const App = () => {
 *   const { fetchClient, interceptBefore } = useUtils();
 *   interceptBefore(withAuth("token"));
 *   return () => html`...`;
 * };
 * ```
 */
import type { AfterInterceptor, BeforeInterceptor, ErrorInterceptor } from "../Fetch";
import { FetchClient } from "../Fetch/Fetch";
export declare class FetchUtils {
    fetchClient: FetchClient;
    private _beforeFns;
    private _afterFns;
    private _errorFns;
    constructor();
    interceptBefore(fn: BeforeInterceptor): () => void;
    interceptAfter(fn: AfterInterceptor): () => void;
    interceptError(fn: ErrorInterceptor): () => void;
    clearInterceptors(): void;
}
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