code: func (s *GistsService) Delete(ctx context.Context, id string) (*Response, error) {
  	u := fmt.Sprintf("gists/%v", id)
  	req, err := s.client.NewRequest("DELETE", u, nil)
  	if err != nil {
  		return nil, err
  	}
  	return s.client.Do(ctx, req, nil)
  }
docs: // Delete a gist.
  //
  // GitHub API docs: https://developer.github.com/v3/gists/#delete-a-gist