def METHOD_NAME(course_key_str: str) -> bool:
    """
    Delete the tags for a Course (when the course itself has been deleted).
    Params:
        course_key_str (str): identifier of the Course
    """
    try:
        course_key = CourseKey.from_string(course_key_str)
        log.info("Deleting tags for Course with id: %s", course_key)
        _delete_tags(course_key)
        return True
    except Exception as e:  # pylint: disable=broad-except
        log.error("Error deleting tags for Course with id: %s. %s", course_key, e)
        return False