import { MatsuriError } from './MatsuriError.js';

interface FetcherResult<T, U = Record<string, unknown>> {
    data: T | undefined;
    error: MatsuriError<U> | undefined;
}
type AuthTokenHeader = "Authorization" | "X-Access-Token" | "x-authorization" | "X-M2m-Access-Token";
interface FetcherOptions {
    method?: "GET" | "POST" | "PATCH" | "PUT" | "DELETE" | "OPTIONS" | "HEAD";
    token?: string;
    body?: RequestInit["body"];
    fetch?: (info: RequestInfo, init?: RequestInit) => Promise<Response>;
    authTokenHeader?: AuthTokenHeader;
}
declare const fetcher: <T, U = Record<string, unknown>>(url: string, options?: FetcherOptions) => Promise<FetcherResult<T, U>>;
declare const bearerFetcher: <T, U = Record<string, unknown>>(token: string, url: string, options?: FetcherOptions) => Promise<FetcherResult<T, U>>;
declare const fetcherThrows: <T>(url: string, options?: FetcherOptions) => Promise<T>;

export { type AuthTokenHeader, type FetcherOptions, type FetcherResult, bearerFetcher, fetcher, fetcherThrows };