/**
 * 定义请求参数的接口
 */
export interface IRequestOptions {
    method?: 'GET' | 'POST' | 'PUT' | 'DELETE';
    headers?: Record<string, string>;
    body?: BodyInit;
}
/**
 * 定义拦截器的接口
 */
export interface Interceptor<T> {
    onFulfilled?: (value: T) => T | Promise<T>;
    onRejected?: (error: T) => T | Promise<T>;
}
/**
 * 添加拦截器的 request 函数
 *
 * @param url
 * @param options
 */
export declare function request(url: string, options?: IRequestOptions): Promise<Response>;