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-rw-r--r--collect/bst.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/collect/bst.py b/collect/bst.py
index 712683e..d394194 100644
--- a/collect/bst.py
+++ b/collect/bst.py
@@ -1,5 +1,9 @@
#!/usr/bin/env python3
+# © Copyright 2021-2022, Scott Gasch
+
+"""Binary search tree."""
+
from typing import Any, Generator, List, Optional