code: public Observable<GenericResourceInner> createOrUpdateByIdAsync(String resourceId, String apiVersion, GenericResourceInner parameters) {
          return createOrUpdateByIdWithServiceResponseAsync(resourceId, apiVersion, parameters).map(new Func1<ServiceResponse<GenericResourceInner>, GenericResourceInner>() {
              @Override
              public GenericResourceInner call(ServiceResponse<GenericResourceInner> response) {
                  return response.body();
              }
          });
      }
docs: Create a resource by ID.
  
  @param resourceId The fully qualified ID of the resource, including the resource name and resource type. Use the format, /subscriptions/{guid}/resourceGroups/{resource-group-name}/{resource-provider-namespace}/{resource-type}/{resource-name}
  @param apiVersion The API version to use for the operation.
  @param parameters Create or update resource parameters.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable for the request