until -package:numeric-prelude -package:yesod-paginator -package:prelude-compat -package:numhask -package:snap-core -package:ghc -package:ghc-lib-parser -package:scalpel-core -package:netwire -package:faktory package:selective
Keep running an effectful computation until it returns a
Right value, collecting the Left's using a supplied
Monoid instance.