version=4
opts="uversionmangle=s/(rc|a|b|c)/~$1/,\
filenamemangle=s/.*\/grpcio[-_]tools-(\d\S*?)\.tar\.gz/grpcio-tools-$1.tar.gz/" \
  https://pypi.org/project/grpcio-tools/ \
  .*/grpcio[-_]tools-(\d\S*?)\.tar\.gz
