fetch(name, options = nil)
Instance Public methods
Fetches data from the cache, using the given key. If there is data in the
cache with the given key, then that data is returned.
If there is no such data in the cache (a cache miss), then nil
will be returned. However, if a block has been passed, that block will be
passed the key and executed in the event of a cache miss. The return value
of the block will be written to the cache under the given cache key, and
that return value will