title: How to achieve multiple delete from rest high level client 6.2.4?
body: <p>The following code only works for ElasticSearchClient. I want to use RestHighLevelClient 6.2.4 version.      </p>
  
  <pre><code>BulkByScrollResponse response = 
      DeleteByQueryAction.INSTANCE.newRequestBuilder(restClient)
                         .source("persons")
                         .get();
              long deleted = response.getDeleted();
  </code></pre>