import type { UseAsyncFnOptions, UseAsyncFnReturns } from "../use-async-fn/index.js";
import type { AnyFunc } from "../utils/basic.js";
export interface UseLoadingSlowFnOptions<T extends AnyFunc, D = Awaited<ReturnType<T>>, E = any> extends UseAsyncFnOptions<T, D, E> {
    /**
     * The timeout duration in milliseconds to determine if the loading is slow.
     *
     * @defaultValue 0 ms
     */
    loadingTimeout?: number;
    /**
     * A callback to be called when the loading is slow.
     *
     * @defaultValue undefined
     */
    onLoadingSlow?: () => void;
}
export interface UseLoadingSlowFnReturns<T extends AnyFunc, D = Awaited<ReturnType<T>>, E = any> extends UseAsyncFnReturns<T, D, E> {
    /**
     * Whether the loading is slow.
     */
    loadingSlow: boolean;
}
/**
 * A hook to run an async function and determine if the loading is slow.
 *
 * @since 1.4.0
 */
export declare function useLoadingSlowFn<T extends AnyFunc, D = Awaited<ReturnType<T>>, E = any>(fn: T, options?: UseLoadingSlowFnOptions<T, D, E>): UseLoadingSlowFnReturns<T, D, E>;