@Override
        public void beforeBulk(long executionId, BulkRequest request) {

        }
Creates the Elasticsearch sink.
Use {@link DirtySinkFailureHandler} when need sink dirty data

@return the created Elasticsearch sink.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/elasticsearch-7/src/main/java/org/apache/inlong/sort/elasticsearch7/ElasticsearchSink.java