(self, type, value, traceback)
| 52 | return self |
| 53 | |
| 54 | def __exit__(self, type, value, traceback): |
| 55 | if self._nested_level == 1: |
| 56 | self.unset() |
| 57 | self._nested_level -= 1 |
| 58 | # Returning False will cause exceptions to propagate |
| 59 | return False |
| 60 | |
| 61 | def set(self): |
| 62 | """Set the hook.""" |