map is:exact -package:text -package:dense-linear-algebra -package:Cabal-syntax -package:bytestring -package:conduit -package:case-insensitive -package:ghc -package:dlist -package:incipit-base -package:filepath -package:os-string -package:base-compat-batteries 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.