docs: public Observable<NameAvailabilityInformationInner> checkNameAvailabilityAsync(String location, CheckNameAvailabilityParameters parameters) {
          return checkNameAvailabilityWithServiceResponseAsync(location, parameters).map(new Func1<ServiceResponse<NameAvailabilityInformationInner>, NameAvailabilityInformationInner>() {
              @Override
              public NameAvailabilityInformationInner call(ServiceResponse<NameAvailabilityInformationInner> response) {
                  return response.body();
              }
          });
      }