docs: public Observable<ManagementLockObjectInner> getAtSubscriptionLevelAsync(String lockName) {
          return getAtSubscriptionLevelWithServiceResponseAsync(lockName).map(new Func1<ServiceResponse<ManagementLockObjectInner>, ManagementLockObjectInner>() {
              @Override
              public ManagementLockObjectInner call(ServiceResponse<ManagementLockObjectInner> response) {
                  return response.body();
              }
          });
      }