(self, node: operator.Operator, *, special: bool = False)
| 39 | return not self._nodes |
| 40 | |
| 41 | def add_node(self, node: operator.Operator, *, special: bool = False) -> None: |
| 42 | self._nodes.add(node) |
| 43 | if not special: |
| 44 | self._normal_nodes.add(node) |
| 45 | |
| 46 | @property |
| 47 | def nodes(self) -> Iterator[operator.Operator]: |