By default, the cache entries never expire.

By default, expired cache entries are flushed on a minute interval.

The default key mask that ignores nothing.

By default, when the cache prunes, it reduces its entries by 25%, meaning it retains 75% (.75) of its entries.

By default, the cache size (in units) is infinite.

For a prune cycle, this value is the average number of touches that an entry should have. This value is used by the hybrid eviction policy.

Wrapped, non-thread safe dictionary.

The last time that a prune was run. This value is used by the hybrid eviction policy.