code: public Observable<ControllerInner> getByResourceGroupAsync(String resourceGroupName, String name) {
          return getByResourceGroupWithServiceResponseAsync(resourceGroupName, name).map(new Func1<ServiceResponse<ControllerInner>, ControllerInner>() {
              @Override
              public ControllerInner call(ServiceResponse<ControllerInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets an Azure Dev Spaces Controller.
  Gets the properties for an Azure Dev Spaces Controller.
  
  @param resourceGroupName Resource group to which the resource belongs.
  @param name Name of the resource.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the ControllerInner object