Response returned by Set/Add/Replace/Delete/Append/Prepend requests.
// (aka CAS) is nonzero, the set operation can only succeed if the item // exists in memcache and has a same data version id. Set(item *Item) MutateResponse // Batch version of the Set method. Note that the response entries
// Batch version of the Set method. Note that the response entries // ordering is undefined (i.e., may not match the input ordering). SetMulti(items *Item) MutateResponse // *** This method is specific to Dropbox zookeeper-managed memcache ***
// only write to ACTIVE memcache shards, while SetSentinels will write to // both ACTIVE and WRITE_ONLY memcache shards. SetSentinels(items *Item) MutateResponse // This adds a single entry into memcache. Note: Add will fail if the