map is:exact -package:containers -package:bytestring -package:foldl -package:incipit-base -package:case-insensitive -package:ghc -package:charset -package:base-compat package:hedgehog

Generates a map using a Range to determine the length. This may fail to generate anything if the keys produced by the generator do not account for a large enough number of unique items to satify the required map size.