docs: public Observable<RegistryPoliciesInner> updatePoliciesAsync(String resourceGroupName, String registryName, RegistryPoliciesInner registryPoliciesUpdateParameters) {
          return updatePoliciesWithServiceResponseAsync(resourceGroupName, registryName, registryPoliciesUpdateParameters).map(new Func1<ServiceResponse<RegistryPoliciesInner>, RegistryPoliciesInner>() {
              @Override
              public RegistryPoliciesInner call(ServiceResponse<RegistryPoliciesInner> response) {
                  return response.body();
              }
          });
      }