interface FeedState<T> {
    data: T[];
    loading: boolean;
    error: string | undefined;
}
/**
 * Fetch a JSON feed in the shape `{ items: T[] }` from `url`. If `url` is unset,
 * falls back to `inline` synchronously. URL wins when both are provided.
 */
export declare function useFeedJson<T>(url: string | undefined, inline: T[] | undefined): FeedState<T>;
export {};