docs: public Observable<AccessUriInner> grantAccessAsync(String resourceGroupName, String diskName, GrantAccessData grantAccessData) {
          return grantAccessWithServiceResponseAsync(resourceGroupName, diskName, grantAccessData).map(new Func1<ServiceResponse<AccessUriInner>, AccessUriInner>() {
              @Override
              public AccessUriInner call(ServiceResponse<AccessUriInner> response) {
                  return response.body();
              }
          });
      }