public void setElasticsearchInstanceType(String elasticsearchInstanceType) {
        this.elasticsearchInstanceType = elasticsearchInstanceType;
    }
<p>
The Elasticsearch instance type offered by the reserved instance offering.
</p>

@param elasticsearchInstanceType
       The Elasticsearch instance type offered by the reserved instance offering.
@see ESPartitionInstanceType
aws-java-sdk-elasticsearch/src/main/java/com/amazonaws/services/elasticsearch/model/ReservedElasticsearchInstanceOffering.java