From efd9f72f842d1522f0bf54913f57464e8792bd0f Mon Sep 17 00:00:00 2001
From: bt3gl <138340846+bt3gl-google@users.noreply.github.com>
Date: Sun, 30 Jul 2023 15:53:18 -0700
Subject: [PATCH] Update tree_level_traversal.py

---
 trees_and_graphs/tree_level_traversal.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/trees_and_graphs/tree_level_traversal.py b/trees_and_graphs/tree_level_traversal.py
index 15afaee..6317eff 100644
--- a/trees_and_graphs/tree_level_traversal.py
+++ b/trees_and_graphs/tree_level_traversal.py
@@ -1,3 +1,7 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# author: bt3gl
+
 # Given the root of a binary tree, return the level order traversal of its nodes' values. 
 # (i.e., from left to right, level by level).