Interface RequestInit

interface RequestInit {
    body?: BodyInit;
    cache?: RequestCache;
    credentials?: RequestCredentials;
    dispatcher?: Dispatcher;
    duplex?: "half";
    headers?: HeadersInit;
    integrity?: string;
    keepalive?: boolean;
    method?: string;
    mode?: RequestMode;
    redirect?: RequestRedirect;
    referrer?: string;
    referrerPolicy?: ReferrerPolicy;
    signal?: AbortSignal | null;
    window?: null;
}