fixing mypy

Author: eadwinCode

.github/workflows/test_full.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.8
       - name: Install Flit
         run: pip install flit
       - name: Install Dependencies