gh-82530: Create blank function instead of invalid import for email example (GH-97529)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit 2b428a1faed88f148ede131e3b86ab6227c6c3f0)

Co-authored-by: Stanley <46876382+slateny@users.noreply.github.com>