úÎ%3     None is not a real instance of  ,  or f. It pretends being them to enable syntatic sugar of do notation. Its result type is purely phantom.Extract the underlying . Create a  holding a single item.Convert from list.Convert to list.%Monadic operations are not supported.)Applicative operations are not supported.%Functor operations are not supported.       $do-list-0.8.0-6GpxQXLMnmkCIMG417hTbK Data.DoListDoListunDoListitemfromListtoList $fMonadDoList$fApplicativeDoList$fFunctorDoList $fEqDoList $fOrdDoList $fReadDoList $fShowDoListbaseGHC.BaseMonad ApplicativeFunctor$dlist-0.8.0.2-GWAMmbX9rLg3tqrbOizHGv Data.DListDList notSupported