Return the node at *name*, if any. Returns a node or ``None``.
(self, name)
| 635 | raise NotImplementedError # pragma: no cover |
| 636 | |
| 637 | def _get_node(self, name): |
| 638 | """Return the node at *name*, if any. |
| 639 | |
| 640 | Returns a node or ``None``. |
| 641 | """ |
| 642 | raise NotImplementedError # pragma: no cover |
| 643 | |
| 644 | # |
| 645 | # Low-level API with a default implementation, in case a subclass needs |