Function: Add a cache key via PUM Cache.

Function: Set a cache key via PUM Cache.

Function: Replace a cache key via PUM Cache.

Function: Get a cache key via PUM Cache.

Function: Delete a cache key via PUM Cache.

Function: Delete a cache group via PUM Cache.

Function: Increase a numeric cache value by the offset.

Function: Decrease a numeric cache value by the offset.

Function: Gets the filterable timeout for a cache object by key.