code: public Observable<Object> getServerFarmSkusAsync(String resourceGroupName, String name) {
          return getServerFarmSkusWithServiceResponseAsync(resourceGroupName, name).map(new Func1<ServiceResponse<Object>, Object>() {
              @Override
              public Object call(ServiceResponse<Object> response) {
                  return response.body();
              }
          });
      }
docs: Gets all selectable sku's for a given App Service Plan.
  Gets all selectable sku's for a given App Service Plan.
  
  @param resourceGroupName Name of the resource group to which the resource belongs.
  @param name Name of App Service Plan
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the Object object