(self)
| 61 | self._managed = False |
| 62 | |
| 63 | async def __aenter__(self): |
| 64 | if self._managed: |
| 65 | raise apg_errors.InterfaceError( |
| 66 | 'cannot enter context: already in an `async with` block') |
| 67 | self._managed = True |
| 68 | await self.start() |
| 69 | |
| 70 | async def __aexit__(self, extype, ex, tb): |
| 71 | try: |