duplicated block id: 1
size: 57 cleaned lines of code
in 2 files:
 - flink-connector-elasticsearch6/src/main/java/org/apache/flink/connector/elasticsearch/sink/Elasticsearch6SinkBuilder.java (69:134)
 - flink-connector-elasticsearch7/src/main/java/org/apache/flink/connector/elasticsearch/sink/Elasticsearch7SinkBuilder.java (68:132)