General purpose simple caching. https://github.com/elblake/expiring-cache-map
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 general purpose simple shared state cache map with automatic expiration of values for caching the results of accessing a resource (such as reading a file), with variations for Ord and Hashable keys.