code: def delete_comment(repo: GithubRepository, comment_id: int) -> None:
      
      url = ("https://api.github.com/repos/{}/{}/issues/comments/{}"
             "?access_token={}".format(repo.organization,
                                       repo.name,
                                       comment_id,
                                       repo.access_token))
      response = requests.delete(url)
      if response.status_code != 204:
          raise RuntimeError(
              'Comment delete failed. Code: {}. Content: {}.'.format(
                  response.status_code, response.content))
docs: References:
          https://developer.github.com/v3/issues/comments/#delete-a-comment