declare function fetch( input?: RequestInfo, init?: RequestInit ): Promise; declare interface GlobalFetch { fetch(input: RequestInfo, init?: RequestInit): Promise; } type RequestInfo = import("./fetch").RequestInfo; type Headers = import("./fetch").Headers; type HeadersInit = import("./fetch").HeadersInit; type Body = import("./fetch").Body; type Request = import("./fetch").Request; type RequestAgent = import("./fetch").RequestAgent; type RequestInit = import("./fetch").RequestInit; type RequestMode = import("./fetch").RequestMode; type RequestCredentials = import("./fetch").RequestCredentials; type RequestCache = import("./fetch").RequestCache; type RequestRedirect = import("./fetch").RequestRedirect; type ReferrerPolicy = import("./fetch").ReferrerPolicy; type Response = import("./fetch").Response; type ResponseInit = import("./fetch").ResponseInit; type BodyInit = import("./fetch").BodyInit; type URLSearchParams = import("./url").URLSearchParams; type URLSearchParamsInit = import("./url").URLSearchParamsInit;