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import { TreeNode } from "../binary-tree-inorder-traversal/TreeNode.ts";
export default function isSameTree(    p: TreeNode | null | undefined,    q: TreeNode | null | undefined,): boolean {    return p === q ? true : p?.val === q?.val && isSameTree(p?.left, q?.left) &&        isSameTree(p?.right, q?.right);}