code: public Observable<TransformInner> updateAsync(String resourceGroupName, String accountName, String transformName, TransformInner parameters) {
          return updateWithServiceResponseAsync(resourceGroupName, accountName, transformName, parameters).map(new Func1<ServiceResponse<TransformInner>, TransformInner>() {
              @Override
              public TransformInner call(ServiceResponse<TransformInner> response) {
                  return response.body();
              }
          });
      }
docs: Update Transform.
  Updates a Transform.
  
  @param resourceGroupName The name of the resource group within the Azure subscription.
  @param accountName The Media Services account name.
  @param transformName The Transform name.
  @param parameters The request parameters
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the TransformInner object