*   <li>Limiting the number of results (size).</li>
 *   <li>Filtering by tags, roles, fields, and languages.</li>
 *   <li>Excluding specific words from the results.</li>
 *   <li>Building the OpenSearch query and rescorer for the popular words search.</li>
 *   <li>Creating a {@link PopularWordsResponse} from the OpenSearch search response.</li>
 * </ul>
 *
 * @see Request
 * @see PopularWordsResponse
 */

    public void test_getRescorers_emptyList() {
        java.util.Map<String, Object> params = new java.util.HashMap<>();
        org.opensearch.search.rescore.RescorerBuilder<?>[] rescorers = queryHelper.getRescorers(params);

        assertNotNull(rescorers);
        assertEquals(0, rescorers.length);
    }

    public void test_addQueryRescorer() {

            params.put("query", query);
            params.put("responseFields", responseFields);
            params.put("offset", offset);
            params.put("size", size);
            // TODO support rescorer(convert to map)
            // params.put("geoInfo", geoInfo);
            // params.put("facetInfo", facetInfo);
            params.put("similarDocHash", similarDocHash);
            return params;
        }

        // Test with first implementation
        QueryRescorer rescorer1 = new QueryRescorer() {
            @Override
            public RescorerBuilder<?> evaluate(Map<String, Object> params) {
                return createMockRescorerBuilder();
            }
        };

        // Test with second implementation
        QueryRescorer rescorer2 = new QueryRescorer() {
            @Override

### Expiry or removal events

}

// Expiry returns expiry of restored object and true if restore-object has completed.
// Otherwise returns zero value of time.Time and false.
func (r restoreObjStatus) Expiry() (time.Time, bool) {
	if r.Ongoing() {
		return time.Time{}, false
	}
	return r.expiry, true
}

// Ongoing returns true if restore-object is ongoing.
func (r restoreObjStatus) Ongoing() bool {

```
aws s3api restore-object --bucket srcbucket \
--key object \
--restore-request Days=3
```

### 4.1 Monitoring transition events

        }

        SpnegoException restored;
        try (ByteArrayInputStream bin = new ByteArrayInputStream(bytes); ObjectInputStream oin = new ObjectInputStream(bin)) {
            restored = (SpnegoException) oin.readObject();
        }

        // Then
        assertNotNull(restored);
        assertEquals("serialize me", restored.getMessage());
        assertNotNull(restored.getCause());

        } else {
            log.error("Non-recoverable RDMA error, fallback required", error);
            return false;
        }
    }

    /**
     * Attempt to recover from a recoverable RDMA error
     *
     * @param connection RDMA connection to recover
     * @param error the original error
     * @return true if recovery succeeded, false otherwise
     */

import java.util.Map;

import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.search.rescore.QueryRescorerBuilder;
import org.opensearch.search.rescore.RescorerBuilder;

public class LtrQueryRescorerTest extends UnitFessTestCase {

    private LtrQueryRescorer ltrQueryRescorer;

    @Override
    public void setUp() throws Exception {