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This can be verified by running the tests and then manually querying your redis instance for entries present in the zset. You'll find that sometimes the second to last or third to last (or some other old) entry has been evicted instead of the oldest, as should be done under LRU eviction scheme. This is also the reason behind the eviction tests some times failing.

The methods and their expected behaviour is lacking proper documentation. This package needs to do a better job of explaining the what each method does, what behaviour to expect with decorators, namespaces, cache eviction etc.

Add the ability for library callers to optionally pass in a logger object and print debug logs to that object

get adds value to scoreSet, leaving set to clean it up. This can be avoided by adding XX option to ZADD command

Presently this library only supports LRU caching. We'd want to support other cache eviction schemes also, including (but not limited to) LFU, FIFO, LIFO, RRIP.