def inorderTraversal_memory(self, root):
        lst = []
        self.inorderTraverse_itr(root, lst)
        return lst
Gets the subset represented by the current instance.
dataset/ETHPy150Open algorhythms/LeetCode/095 Binary Tree Inorder Traversal.py/Solution.inorderTraversal_memory--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/combinatorics/subsets.py/Subset.subset