set(...args) {
    const [name, value, cookie] = args.length === 1 ? [args[0].name, args[0].value, args[0]] : args;
    const map = this._parsed;
    map.set(name, normalizeCookie({ name, value, ...cookie }));
    replace(map, this._headers);
    return this;
  }
{@link https://wicg.github.io/cookie-store/#CookieStore-set CookieStore#set} without the Promise.