Add a helper eer function

4 jobs for eer in 15 minutes and 37 seconds (queued for 10 seconds)
Status Job ID Name Coverage
  Build
passed #139419
docker
build_linux_27

00:15:30

85.0%
passed #139420
docker
build_linux_36

00:15:31

85.0%
passed #139421
macosx
build_macosx_27

00:13:34

85.0%
passed #139422
macosx
build_macosx_36

00:13:26

85.0%