until -package:numeric-prelude -package:base-prelude -package:hosc -package:numhask -package:Cabal -package:LambdaHack -package:basic-prelude -is:exact -package:distribution-opensuse -package:yesod-paginator package:selective -is:exact
Keep running an effectful computation until it returns a
Right value, collecting the Left's using a supplied
Monoid instance.