import { QueryClient, QueryFilters } from "@tanstack/query-core";
//#region src/useIsFetching.d.ts
/**
 * The `useIsFetching` hook returns the `number` of the queries that your application is loading or fetching in
 * the background (useful for app-wide loading indicators).
 *
 * @param filters - The {@link QueryFilters} to narrow down the matched queries.
 * @param queryClient - Use this to use a custom `QueryClient`. Otherwise, the one from the nearest context will
 * be used.
 * @returns Will be the `number` of the queries that your application is currently loading or fetching in the
 * background.
 *
 * @example
 * ```tsx
 * import { useIsFetching } from '@tanstack/react-query'
 *
 * function PostsFetchingIndicator() {
 *   // How many queries matching the posts prefix are fetching?
 *   const isFetchingPosts = useIsFetching({ queryKey: ['posts'] })
 *
 *   return isFetchingPosts ? <span>Refreshing posts...</span> : null
 * }
 * ```
 *
 * @example
 * A global loading indicator for any query fetching in the background, not just the ones on screen:
 * ```tsx
 * import { useIsFetching } from '@tanstack/react-query'
 *
 * function GlobalLoadingIndicator() {
 *   const isFetching = useIsFetching()
 *
 *   return isFetching ? (
 *     <div>Queries are fetching in the background...</div>
 *   ) : null
 * }
 * ```
 */
export declare function useIsFetching(filters?: QueryFilters, queryClient?: QueryClient): number;
//#endregion
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