code: @Override
      public CreateGroupVersionResult createGroupVersion(CreateGroupVersionRequest request) {
          request = beforeClientExecution(request);
          return executeCreateGroupVersion(request);
      }
docs: Creates a version of a group which has already been defined.
  
  @param createGroupVersionRequest
  @return Result of the CreateGroupVersion operation returned by the service.
  @throws BadRequestException
  invalid request
  @sample AWSGreengrass.CreateGroupVersion
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/greengrass-2017-06-07/CreateGroupVersion" target="_top">AWS
  API Documentation</a>