(self, val)
| 33 | node.r = Node(val) |
| 34 | #to find an element if present in root node in tree |
| 35 | def find(self, val): |
| 36 | if self.root is not None: |
| 37 | return self._find(val, self.root) |
| 38 | else: |
| 39 | return None |
| 40 | # to find any element in tree |
| 41 | def _find(self, val, node): |
| 42 | if val == node.v: |