'Gets memcache statistics for this application.
All of these statistics may reset due to various transient conditions. They
provide the best information available at the time of being called.
Returns:
Dictionary mapping statistic names to associated values. Statistics and
their associated meanings:
hits: Number of cache get requests resulting in a cache hit.
misses: Number of cache get requests resulting in a cache miss.
byte_hits: Sum of bytes transferred on get requests. Rolls over to
zero on overflow.
items: Number of key/value pairs in the cache.
bytes: Total size of all items in the cache.
oldest_item_age: How long in seconds since the oldest item in the
cache was accessed. Effectively, this indicates how long a new
item will survive in the cache without being accessed. This is
_not_ the amount of time that has elapsed since the item was
created.
On error, returns None.'

def get_stats(self):

    rpc = self.get_stats_async()
    return rpc.get_result()
