///

## Duplicate headers

It is possible to receive duplicate headers. That means, the same header with multiple values.

You can define those cases using a list in the type declaration.

You will receive all the values from the duplicate header as a Python `list`.

For example, to declare a header of `X-Token` that can appear more than once, you can write:

//// tab | Python 3.10+

```Python hl_lines="9"

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

import com.fasterxml.jackson.databind.JsonNode;
import org.junit.*;

import play.mvc.*;
import play.test.*;
import play.data.DynamicForm;
import play.data.validation.ValidationError;
import play.data.validation.Constraints.RequiredValidator;
import play.i18n.Lang;
import play.libs.F;
import play.libs.F.*;
import play.twirl.api.Content;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cli.transfer;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CountDownLatch;
import java.util.function.Consumer;

 * under the License.
 */
package org.apache.maven.model.building;

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.model.Model;
import org.apache.maven.model.building.DefaultTransformerContext.GAKey;

			if versions {
				fpath += ":" + obj.VersionID
			}
			return
		}

		// List all objects from a bucket-name with a matching prefix.
		for object := range s3Client.ListObjects(context.Background(), bucket, opts) {
			if object.Err != nil {
				log.Println("FAILED: LIST with error:", object.Err)
				continue
			}
			if !minModTime.IsZero() && object.LastModified.Before(minModTime) {

import com.google.common.collect.Lists;
import com.google.common.primitives.Longs;
import com.google.common.testing.EqualsTester;
import com.google.common.testing.SerializableTester;
import java.util.Iterator;
import java.util.List;
import junit.framework.TestCase;

/** Unit tests for {@link Converter}. */
@GwtCompatible(emulated = true)
public class ConverterTest extends TestCase {

  private static final Converter<String, Long> STR_TO_LONG =

has been harmed or offended, it is our responsibility to listen carefully and respectfully, and do
our best to right the wrong.

Although this list cannot be exhaustive, we explicitly honor diversity in age, culture, ethnicity,
gender identity or expression, language, national origin, political beliefs, profession, race,

import com.google.common.annotations.J2ktIncompatible;
import com.google.j2objc.annotations.WeakOuter;
import java.util.Comparator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import javax.annotation.CheckForNull;

/**
 * An implementation of {@link ImmutableTable} holding an arbitrary number of cells.
 *
 * @author Gregory Kick
 */
@GwtCompatible

  // Token is the opaque bearer token.
  // +optional
  optional string token = 1;

  // Audiences is a list of the identifiers that the resource server presented
  // with the token identifies as. Audience-aware token authenticators will
  // verify that the token was intended for at least one of the audiences in
  // this list. If no audiences are provided, the audience will default to the
  // audience of the Kubernetes apiserver.
  // +optional

import javax.inject.Named;
import javax.inject.Singleton;

import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;

import org.apache.maven.api.model.Dependency;
import org.apache.maven.api.model.DependencyManagement;
import org.apache.maven.api.model.Exclusion;