def lines(self, *args, **kwargs):
        return self._add_item(LineVisual, *args, **kwargs)
:param root: TreeNode
dataset/ETHPy150Open kwikteam/phy/phy/plot/plot.py/View.lines--crossover with--dataset/ETHPy150Open algorhythms/LeetCode/129 Sum Root to Leaf Numbers.py/Solution.sumNumbers