import org.opensearch.index.query.functionscore.ScoreFunctionBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.search.sort.SortOrder;

public class SuggestRequest extends Request<SuggestResponse> {
    private String index = null;

    private String query = "";

    private int size = 10;

    private final List<String> tags = new ArrayList<>();

import static org.junit.Assert.assertTrue;

import org.junit.Test;

public class SuggestRequestTest {
    @Test
    public void test_isHiraganaQuery() throws Exception {
        SuggestRequest request = new SuggestRequest();
        assertTrue(request.isHiraganaQuery("あ"));
        assertTrue(request.isHiraganaQuery("あおぞら"));
        assertTrue(request.isHiraganaQuery("けんさく"));

import org.opensearch.client.Client;

public class SuggestRequestBuilder extends RequestBuilder<SuggestRequest, SuggestResponse> {
    public SuggestRequestBuilder(final Client client, final ReadingConverter readingConverter, final Normalizer normalizer) {
        super(client, new SuggestRequest());
        request.setReadingConverter(readingConverter);
        request.setNormalizer(normalizer);
    }