interface RequestCookie {
    name: string;
    value: string;
}
interface ReadonlyHeaders extends Iterable<[string, string]> {
    get(name: string): string | null;
    has(name: string): boolean;
    forEach(callbackfn: (value: string, key: string, parent: Headers) => void, thisArg?: any): void;
    entries(): IterableIterator<[string, string]>;
    keys(): IterableIterator<string>;
    values(): IterableIterator<string>;
}
interface ReadonlyRequestCookies extends Iterable<RequestCookie> {
    get(name: string): RequestCookie | undefined;
    getAll(name?: string): RequestCookie[];
    has(name: string): boolean;
    toString(): string;
}
declare function headers(): ReadonlyHeaders;
declare function cookies(): ReadonlyRequestCookies;

export { type ReadonlyHeaders, type ReadonlyRequestCookies, type RequestCookie, cookies, headers };