Pep249

[ajshedivy]

Fixes #

Changes proposed in this pull request:

• Add PEP 249 support: https://peps.python.org/pep-0249/#introduction

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• [x] If this PR fixes a bug, I've added a test that will fail without my fix.
• [x] If this PR adds a new feature, I've added tests that sufficiently cover my new functionality.