declare const CANCELLED_ERROR_FLAG = "__AHOOKS_CANCELLED_ERROR__";
interface PendingPromiseRef {
    current: ((reason?: unknown) => void) | undefined;
}
/**
 * Rejection reason used when `useRequest` ignores a request, either because
 * `cancel()` was called (or the component unmounted), or because a newer call superseded it.
 *
 * It is swallowed by `run`/`refresh`, by `options.onError` and by the plugin `onError`
 * handlers, so it only surfaces to code that awaits `runAsync`/`refreshAsync` directly.
 */
export declare class CancelledError extends Error {
    /** Marker that survives duplicated copies of the module, unlike `instanceof`. */
    readonly [CANCELLED_ERROR_FLAG] = true;
    constructor(message?: string);
}
export declare function isCancelledError(error: unknown): error is CancelledError;
export declare function cancelPendingPromise(pendingRejectRef: PendingPromiseRef): void;
export {};