exec("Node = type('Node', (), {'depth': lambda self: 0 if (getattr(self, 'left', None) is None and getattr(self, 'right', None) is None) else max(eval(f'self.{getattr(self, 'left', None)}.depth()' if getattr(self, 'left', None) else 0), eval(f'self.{getattr(self, 'right', None)}.depth()' if getattr(self, 'right', None) else 0)) + 1}); def jopa(self, entry): if entry: self.left, self.right = [Node(entry=entry_value) for entry_value in entry.values() if isinstance(entry, dict)] + [None] * len(entry.values()); Node.__init__ = jopa")