Hydrogen Multimap https://scravy.de/hydrogen-multimap/
|Latest on Hackage:||0.3|
This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.
A very simple, basic implementation of a MultiMap (a map that associates a single key with multiple values).
This MultiMap is basically a
Map k [v] (multiple keys are backed by Lists).