* symmectric tree
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* Update symmetric_tree.py
---------
Co-authored-by: jeevaramanthan.m <jeevaramanathan.m@infosys.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
