rename typing and use pipe syntax instead of Union

[glass-ships]

Quick patch to address a recent issue where from typing import Union throws an exception due to overshadowing a standard library

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.16%. Comparing base (a2c4a48) to head (4cca1e9).

Additional details and impacted files

@@            Coverage Diff             @@
##             next     #118      +/-   ##
==========================================
- Coverage   85.26%   85.16%   -0.11%     
==========================================
  Files          23       23              
  Lines        2926     2925       -1     
==========================================
- Hits         2495     2491       -4     
- Misses        431      434       +3     

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