code: @SafeVarargs
      public static Function<Service<HttpRequest, HttpResponse>, HttpAuthService>
      newDecorator(Authorizer<HttpRequest>... authorizers) {
          return newDecorator(ImmutableList.copyOf(requireNonNull(authorizers, "authorizers")));
      }
docs: Creates a new HTTP authorization {@link Service} decorator using the specified
  {@link Authorizer}s.
  
  @param authorizers the array of {@link Authorizer}s.