import type { Fn } from '@rhao/types-base';
import type { RequestBasicContext } from '../context';
export declare function RequestLoading(): import("../middleware").RequestMiddlewareObject<any>;
type Context<TData, TParams extends unknown[] = unknown[]> = RequestBasicContext<TData, TParams>;
declare module '@rhao/request' {
    interface RequestBasicOptions {
        /**
         * `loading` 延迟时间，单位：`ms`，如果值大于 0，则启动延迟，若请求在延迟前结束则不会更新 `loading` 状态
         * @default 300
         */
        loadingDelay?: number;
    }
    interface RequestConfigHooks<TData, TParams extends unknown[] = unknown[]> {
        /**
         * 请求状态变更时触发，多次并发调用仅在初次和最近执行结束后触发
         */
        loadingChange: Fn<[loading: boolean, context: Context<TData, TParams>], any>;
    }
}
export {};