derived classes must implement this function
(self)
| 57 | wechaty acceptable interface |
| 58 | """ |
| 59 | async def accept(self) -> None: |
| 60 | """ |
| 61 | derived classes must implement this function |
| 62 | """ |
| 63 | raise NotImplementedError |
| 64 | |
| 65 | |
| 66 | EndPoint = Tuple[str, int] |