Update data_structures/binary_tree/binary_tree_traversals.py

dylanbuchi · poyea · web-flow · commit 129f823a57b6 · 2021-10-26T14:48:42.000-03:00
Co-authored-by: John Law &lt;johnlaw.po@gmail.com&gt;
diff --git a/data_structures/binary_tree/binary_tree_traversals.py b/data_structures/binary_tree/binary_tree_traversals.py
@@ -3,7 +3,7 @@
 
 from collections import deque
 from dataclasses import dataclass
-from typing import Optional, Sequence
+from typing import Sequence
 
 
 @dataclass
