def METHOD_NAME(comment, site):
    thread = comment.thread
    return {
        'course_id': str(thread.course_id),
        'comment_id': comment.id,
        'comment_body': comment.body,
        'comment_author_id': comment.user_id,
        'comment_created_at': comment.created_at,  # comment_client models dates are already serialized
        'thread_id': thread.id,
        'thread_title': thread.title,
        'thread_author_id': thread.user_id,
        'thread_created_at': thread.created_at,  # comment_client models dates are already serialized
        'thread_commentable_id': thread.commentable_id,
        'site_id': site.id
    }