////

//// tab | Python 3.8+ alternative

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009b.py!}
```

////

#### Sử dụng `Union` hay `Optional`

If you are using a Python version below 3.10, here's a tip from my very **subjective** point of view:

Nếu bạn đang sử dụng phiên bản Python dưới 3.10, đây là một mẹo từ ý kiến rất "chủ quan" của tôi:

* 🚨 Tránh sử dụng `Optional[SomeType]`

import org.opensearch.search.aggregations.metrics.TopHitsAggregationBuilder;
import org.opensearch.search.aggregations.metrics.ValueCountAggregationBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public abstract class BsKeyMatchCA extends EsAbstractConditionAggregation {

    // ===================================================================================

	}
}

// Wrapper for calling TestPaging for both Erasure and FS.
func TestPaging(t *testing.T) {
	ExecObjectLayerTest(t, testPaging)
}

// Tests validate creation of objects and the order of listing using various filters for ListObjects operation.
func testPaging(obj ObjectLayer, instanceType string, t TestErrHandler) {
	obj.MakeBucket(context.Background(), "bucket", MakeBucketOptions{})

		}

		// Validate that the client cannot access the bucket after revocation.
		c.mustNotListObjects(ctx, minioClient, bucket)
	}
}

// SetUpLDAP - expects to setup an LDAP test server using the test LDAP
// container and canned data from https://github.com/minio/minio-ldap-testing
func (s *TestSuiteIAM) SetUpLDAP(c *check, serverAddr string) {

import org.opensearch.search.aggregations.metrics.TopHitsAggregationBuilder;
import org.opensearch.search.aggregations.metrics.ValueCountAggregationBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public abstract class BsAccessTokenCA extends EsAbstractConditionAggregation {

    // ===================================================================================

import org.opensearch.search.aggregations.metrics.TopHitsAggregationBuilder;
import org.opensearch.search.aggregations.metrics.ValueCountAggregationBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public abstract class BsJobLogCA extends EsAbstractConditionAggregation {

    // ===================================================================================

import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder.FilterFunctionBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public abstract class BsCrawlingInfoCQ extends EsAbstractConditionQuery {

    protected static final Class<?> suppressUnusedImportLocalDateTime = LocalDateTime.class;

import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder.FilterFunctionBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public abstract class BsCrawlingInfoParamCQ extends EsAbstractConditionQuery {

    protected static final Class<?> suppressUnusedImportLocalDateTime = LocalDateTime.class;

import org.opensearch.search.aggregations.metrics.TopHitsAggregationBuilder;
import org.opensearch.search.aggregations.metrics.ValueCountAggregationBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public abstract class BsThumbnailQueueCA extends EsAbstractConditionAggregation {

    // ===================================================================================

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