Make the rest of the services have a similar raw/user interface structure.

service/memcache/types.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package memcache
 
 import (
         "time"
 )
 
@@ skipping 12 matching lines @@
 }
 
 // Item is a wrapper around *memcache.Item. Note that the Set* methods all
 // return the original Item (e.g. they mutate the original), due to
 // implementation constraints. They return the original item to allow easy
 // chaining, e.g.:
 //   itm := memcache.Get(c).NewItem("foo").SetValue([]byte("stuff"))
 type Item interface {
         Key() string
         Value() []byte
-        Object() interface{}
         Flags() uint32
         Expiration() time.Duration
 
         SetKey(string) Item
         SetValue([]byte) Item
-        SetObject(interface{}) Item
         SetFlags(uint32) Item
         SetExpiration(time.Duration) Item
+
+        // SetAll copies all the values from other into this item (including the hidden
+        // CasID field).
+        SetAll(other Item)
 }