zookeeperreceiver: Add metrics metadata.yaml (#1430)

receiver/zookeeperreceiver/codegen.go

@@ -0,0 +1,19 @@
+// Copyright 2020 The OpenTelemetry 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.
+
+// +build !windows
+
+//go:generate mdatagen metadata.yaml
+
+package zookeeperreceiver

receiver/zookeeperreceiver/internal/metadata/.nocover

@@ -0,0 +1 @@
+We test the generated code in the package it is used.