export declare const fetch: {
    (...args: any[]): Promise<any>;
    get: (api: string, params?: any, ...args: any[]) => any;
    post: (api: string, params?: any, ...args: any[]) => any;
    put: (api: string, params?: any, ...args: any[]) => any;
    delete: (api: string, params?: any, ...args: any[]) => any;
    upload: (api: string, params?: any, ...args: any[]) => any;
};