úÎN     A class for list types. % Every list has an underlying monad. :Transform an action returning a list to the returned list  > joinL $ Identity "hello"  "hello"   foldr for s.  the result and ' right side' values are monadic actions. Prepend an item to a  Convert a list to a   > fromList [] :: Maybe Int  Nothing  > fromList [5] :: Maybe Int  Just 5 filter for any MonadPlus  > filter (> 5) (Just 3)  Nothing An action to do foldl for s !Execute the monadic actions in a  7Transform a list of actions to a list of their results " > joinM [Identity 4, Identity 7]  [4,7] An action to transform a  to a list ! > runIdentity $ toList "hello!"  "hello!" ;Consume a list (execute its actions) and return its length ! > runIdentity $ lengthL [1,2,3]  3 LTransform the underlying monad of a list given a way to transform the monad  > import Data.List.Tree (bfs) M > bfs (transformListMonad (\(Identity x) -> [x, x]) "hey" :: ListT [] Char)  "hheeeeyyyyyyyy" *Consume all items and return the last one  > runIdentity $ lastL "hello"  'o' 9Merge many lists sorted by a criteria given the criteria V > mergeOn length [["hi", "hey", "hello"], ["cat", "falcon"], ["banana", "cucumber"]] 9 ["hi","cat","hey","hello","banana","falcon","cucumber"] 8Merge two lists sorted by a criteria given the criteria  > merge2On id "01568" "239"  "01235689"      !"#      !"# $% &List-0.2Data.List.ClassControl.Monad.ListTListItemMrunListjoinLListItemConsheadLtailLNilfoldrLconsfromListfilterfoldlLscanl genericTakeexecutejoinM takeWhiletoListlengthLtransformListMonadzipzipWithlastLrepeat transposemergeOnmerge2OnListTbase Control.Monad MonadPlusrunListTfoldrL'