export type Fetcher = <T>(input: RequestInfo | URL, init?: RequestInit) => Promise<T>;
export interface FetcherError extends Error {
    url?: string;
    status?: number;
    statusText?: string;
    responseText?: string;
    responseJson?: object;
}
export declare const fetcherError: (message: string, response: Response, responseText: string) => FetcherError;
export declare const fetchData: (input: RequestInfo | URL, init?: RequestInit) => Promise<any>;
export declare const postData: (input: RequestInfo | URL, init: Omit<RequestInit, "method">) => Promise<any>;