docs: public Observable<Map<String, String>> listEndpointsAsync(UUID appId) {
          return listEndpointsWithServiceResponseAsync(appId).map(new Func1<ServiceResponse<Map<String, String>>, Map<String, String>>() {
              @Override
              public Map<String, String> call(ServiceResponse<Map<String, String>> response) {
                  return response.body();
              }
          });
      }