How to fix ModuleNotFoundError: No module named 'grpcio'

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

Verification

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