map -package:base -is:exact -package:case-insensitive -package:unordered-containers -package:bytestring -package:aeson -package:pipes package:hedgehog -is:exact is:exact
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.