flink-connector-elasticsearch7/src/main/java/org/apache/flink/streaming/connectors/elasticsearch7/Elasticsearch7BulkProcessorIndexer.java [67:74]:
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    public void add(IndexRequest... indexRequests) {
        for (IndexRequest indexRequest : indexRequests) {
            if (flushOnCheckpoint) {
                numPendingRequestsRef.getAndIncrement();
            }
            this.bulkProcessor.add(indexRequest);
        }
    }
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flink-connector-elasticsearch6/src/main/java/org/apache/flink/streaming/connectors/elasticsearch6/Elasticsearch6BulkProcessorIndexer.java [67:74]:
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    public void add(IndexRequest... indexRequests) {
        for (IndexRequest indexRequest : indexRequests) {
            if (flushOnCheckpoint) {
                numPendingRequestsRef.getAndIncrement();
            }
            this.bulkProcessor.add(indexRequest);
        }
    }
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