## List of models

The same way, you can declare responses of lists of objects.

For that, use the standard Python `typing.List` (or just `list` in Python 3.9 and above):

//// tab | Python 3.9+

```Python hl_lines="18"
{!> ../../docs_src/extra_models/tutorial004_py39.py!}
```

import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Method;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Queue;
import java.util.Set;

/**
 * Utilities for collecting and validating tester requirements from annotations.
 *

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cling.invoker.mvnenc;

import java.io.InterruptedIOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.maven.api.cli.mvnenc.EncryptInvoker;
import org.apache.maven.api.cli.mvnenc.EncryptInvokerRequest;
import org.apache.maven.api.cli.mvnenc.EncryptOptions;

```

////

/// warning | "警告"

注意，使用 `convert_underscores = False` 要慎重，有些 HTTP 代理和服务器不支持使用带有下划线的请求头。

///

## 重复的请求头

有时，可能需要接收重复的请求头。即同一个请求头有多个值。

类型声明中可以使用 `list` 定义多个请求头。

使用 Python `list` 可以接收重复请求头所有的值。

例如，声明 `X-Token` 多次出现的请求头，可以写成这样：

//// tab | Python 3.10+

```Python hl_lines="9"
{!> ../../docs_src/header_params/tutorial003_an_py310.py!}
```

////

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.es.user.cbean.bs;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.codelibs.fess.es.user.allcommon.EsAbstractConditionBean;
import org.codelibs.fess.es.user.bsentity.dbmeta.RoleDbm;
import org.codelibs.fess.es.user.cbean.RoleCB;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.es.config.cbean.bs;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.codelibs.fess.es.config.allcommon.EsAbstractConditionBean;
import org.codelibs.fess.es.config.bsentity.dbmeta.ElevateWordToLabelDbm;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.it.admin;

import static org.hamcrest.Matchers.equalTo;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.codelibs.fess.it.CrudTestBase;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Function;
import com.google.common.testing.NullPointerTester;
import java.util.List;
import junit.framework.TestCase;

/**
 * Tests for {@code TreeTraverser}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault

}

// PriorityClassList is a collection of priority classes.
message PriorityClassList {
  // Standard list metadata
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 1;

  // items is the list of PriorityClasses
  repeated PriorityClass items = 2;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.maven.artifact.metadata.ArtifactMetadata;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.ArtifactRepositoryPolicy;