Counter.py: clean up imports #1196

Job	Run time
Prepare	56s
Shellcheck	7s
Dependency	4s
Ruff check and force	6s
Check commit	40s
Create pytest cache for Python 3.12	7s
Create pytest cache for Python 3.11	10s
Run pytest using Python 3.12	28s
Run pytest using Python 3.11	25s
Process test coverage	17s
Run mypy	11s
Build and publish Python 🐍 distributions 📦 to TestPyPI	20s
Process test complexity	19s
	4m 10s

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