def METHOD_NAME(self):
    """
    Class - `Issues`
    Example:
    ```
    repository = github.Issue(username="nikhil25803", repository_name="scrape-up", issue_number=59)
    is_milestone = repository.is_milestone()
    ```js
    Returns: Milestones | None
    """
    data = self.__scrape_page()
    try:
        milestone = data.find(
            "a", class_="Link--secondary mt-1 d-block text-bold css-truncate"
        ).text.strip()
        return milestone
    except:
        return None