purge abstract method

Future purge({
  1. int retries = 0,

Clear the value stored in this cache entry.

If retries is 0 (default), this is a best-effort method, which will ignore intermittent failures. If retries is non-zero the operation will be retried with exponential back-off, and IntermittentCacheException will be thrown if all retries fails.


Future purge({int retries = 0});