dianfu commented on a change in pull request #11470: [FLINK-16671][python] 
Support for defining scopes and variables on Python metric group
URL: https://github.com/apache/flink/pull/11470#discussion_r397637386

 File path: 
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+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.flink.python.metric;
+import org.apache.flink.configuration.GlobalConfiguration;
+import org.apache.flink.configuration.MetricOptions;
+import org.apache.flink.fnexecution.v1.FlinkFnApi;
+import org.apache.flink.metrics.MetricGroup;
+import java.util.Arrays;
+ * Helper class for forwarding metric group information from Java to Python 
and forward Python
+ * metrics to Java accumulators and metrics.
+ */
+public class FlinkMetricContainer {
+       private static final String METRIC_KEY_SEPARATOR =
 Review comment:
   What about retrieve this config from the configuration object which is 
available in the operator constructor?

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