adding static type checking to basic_binary_tree.py#2293

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cclauss merged 7 commits intoTheAlgorithms:masterfrom

kanthuc:master

Aug 11, 2020

Commits on Aug 8, 2020

adding static type checking to basic_binary_tree.py
kanthuc
committed

Commits on Aug 9, 2020

Add static type checking to functions with None return type
kanthuc
committed

Commits on Aug 10, 2020

Applying code review comments
kanthuc
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