How to search using elastic search 8.8 java and get response without specifying target bean

Question

In Elastic 6.8 spring data elastic I could query by providing an extractor;

ElasticSearchResultExtractor resultsExtractor;

elasticsearchOperations.query(searchQuery, resultsExtractor)

public class ElasticSearchResultExtractor implements ResultsExtractor<MyExtractorClass>

How can I do similar using elasticsearch-java 8.8.0?