Python SESSION.delete примеры использования

Пример #1

def rem_chat(chat_id):
    with INSERTION_LOCK:
        chat = SESSION.query(Chats).get(str(chat_id))
        if chat:
            SESSION.delete(chat)
            SESSION.commit()
        else:
            SESSION.close()

Пример #2

def del_user(user_id):
    with INSERTION_LOCK:
        curr = SESSION.query(Users).get(user_id)
        if curr:
            SESSION.delete(curr)
            SESSION.commit()
            return True

        ChatMembers.query.filter(ChatMembers.user == user_id).delete()
        SESSION.commit()
        SESSION.close()
    return False