Data.HashMap.Lazy
data HashMap k v
empty
singleton
null
size
member
lookup
lookupDefault
(!)
insert
insertWith
delete
adjust
union
unionWith
unions
map
traverseWithKey
difference
intersection
intersectionWith
foldl'
foldlWithKey'
foldr
foldrWithKey
filter
filterWithKey
keys
elems
toList
fromList
fromListWith