public org.apache.flink.table.descriptors.Elasticsearch bulkFlushMaxActions(int maxActions) {
		internalProperties.putInt(CONNECTOR_BULK_FLUSH_MAX_ACTIONS, maxActions);
		return this;
	}
Configures how to buffer elements before sending them in bulk to the cluster for efficiency.

<p>Sets the maximum number of actions to buffer for each bulk request.

@param maxActions the maximum number of actions to buffer per bulk request.
elasticsearch5-xh/elasticsearch5-xh-sink/src/main/java/org/apache/flink/table/descriptors/Elasticsearch.java