How to fix ModuleNotFoundError: No module named 'crashtest'

ModuleNotFoundError: No module named 'crashtest'
Recommended: Install via pip into your active environment.
python -m pip install crashtest

Verification

Command
python -c "import crashtest; print(crashtest.__version__)"
Expected output
Success! crashtest version x.y.z (e.g., 2.4.0)