docs: public Observable<RunbookDraftUndoEditResultInner> undoEditAsync(String resourceGroupName, String automationAccountName, String runbookName) {
          return undoEditWithServiceResponseAsync(resourceGroupName, automationAccountName, runbookName).map(new Func1<ServiceResponse<RunbookDraftUndoEditResultInner>, RunbookDraftUndoEditResultInner>() {
              @Override
              public RunbookDraftUndoEditResultInner call(ServiceResponse<RunbookDraftUndoEditResultInner> response) {
                  return response.body();
              }
          });
      }