@property
    def added(self):
        return sum([hunk.added for hunk in self])
iterative version
dataset/ETHPy150Open matiasb/python-unidiff/unidiff/patch.py/PatchedFile.added--crossover with--dataset/ETHPy150Open algorhythms/LeetCode/095 Binary Tree Inorder Traversal.py/Solution.inorderTraverse_itr