import { Http2ServerRequest } from "http2";
import { IncomingMessage } from "http";
import { Getter } from "../types/types";
export declare type CookieSetterParams = string[] | string;
export declare type CookieGetterResult = CookieSetterParams | undefined;
export declare type CookieGetter = Getter<CookieGetterResult>;
export declare const getCookie: (req: IncomingMessage | Http2ServerRequest, key: string) => CookieGetterResult;