diff --git a/vendor/github.com/opencord/voltha-lib-go/pkg/db/model/revision.go b/vendor/github.com/opencord/voltha-lib-go/pkg/db/model/revision.go
new file mode 100644
index 0000000..bb61355
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/pkg/db/model/revision.go
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package model
+
+import (
+	"context"
+	"github.com/opencord/voltha-lib-go/pkg/db/kvstore"
+	"time"
+)
+
+type Revision interface {
+	Finalize(bool)
+	SetConfig(revision *DataRevision)
+	GetConfig() *DataRevision
+	Drop(txid string, includeConfig bool)
+	StorageDrop(txid string, includeConfig bool)
+	ChildDrop(childType string, childHash string)
+	SetChildren(name string, children []Revision)
+	GetChildren(name string) []Revision
+	SetAllChildren(children map[string][]Revision)
+	GetAllChildren() map[string][]Revision
+	SetHash(hash string)
+	GetHash() string
+	ClearHash()
+	getVersion() int64
+	SetupWatch(key string)
+	SetName(name string)
+	GetName() string
+	SetBranch(branch *Branch)
+	GetBranch() *Branch
+	Get(int) interface{}
+	GetData() interface{}
+	GetNode() *node
+	SetLastUpdate(ts ...time.Time)
+	GetLastUpdate() time.Time
+	LoadFromPersistence(ctx context.Context, path string, txid string, blobs map[string]*kvstore.KVPair) []Revision
+	UpdateData(ctx context.Context, data interface{}, branch *Branch) Revision
+	UpdateChildren(ctx context.Context, name string, children []Revision, branch *Branch) Revision
+	UpdateAllChildren(children map[string][]Revision, branch *Branch) Revision
+}