purge
Purge the entry associated with the given cache key.
To configure the behavior of the purge, such as to purge globally rather than within the POP,
use purge_with_opts().
Note
Purged values may persist in cache for a short time (~150ms or less) after this function returns.
Argument type conversion
See the From impls for Bytes to see which types can be used
as a key.
Parameters
Returns
Result<(), CacheError>