[VOL-4291] Rw-core updates for gRPC migration
Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes/md.go b/vendor/github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes/md.go
new file mode 100644
index 0000000..90b8b83
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes/md.go
@@ -0,0 +1,22 @@
+// Copyright 2016 The etcd Authors
+//
+// 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 rpctypes
+
+var (
+ MetadataRequireLeaderKey = "hasleader"
+ MetadataHasLeader = "true"
+
+ MetadataClientAPIVersionKey = "client-api-version"
+)