class TreeNodeimport { TreeNode } from "https://deno.land/x/masx200_leetcode_test@10.4.1/deps.ts"; ConstructorsnewTreeNode(val?: T,left?: TreeNode<T> | null,right?: TreeNode<T> | null,)Type ParametersoptionalT = anyPropertiesleft: TreeNode<T> | nullright: TreeNode<T> | nullval: TMethodsvisualShow(): voidStatic Methodscreate<T = any>(arr: Array<T>): TreeNode<T>show<T = any>(root: TreeNode<T> | null): Array<T>