úÎp² Safe-Inferred+OneTuple is the singleton tuple data type. singleton tuple constructor The  function extracts the OneTuple's only member.  (Compare to  and .) !takes a singleton tuple argument &returns the only element in the tuple         OneTuple-0.2.1Data.Tuple.OneTupleOneTupleonlybase Data.Tuplefstsnd$fMonadFixOneTuple$fMonoidOneTuple$fMonadOneTuple$fApplicativeOneTuple$fFunctorOneTuple$fTraversableOneTuple$fFoldableOneTuple $fIxOneTuple$fEnumOneTuple