{*../../docs_src/python_types/tutorial004.py hl[2] *}

## Déclarer des types

Vous venez de voir là où les types sont généralement déclarés : dans les paramètres de fonctions.

C'est aussi ici que vous les utiliseriez avec **FastAPI**.

### Types simples

Vous pouvez déclarer tous les types  de Python, pas seulement `str`.

Comme par exemple :

* `int`
* `float`

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.NoSuchElementException;
import java.util.function.Function;
import java.util.stream.Collector;
import org.jspecify.annotations.Nullable;

/**
 * A {@link RangeMap} whose contents will never change, with many other important properties

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import com.google.common.base.Function;
import com.google.common.testing.ForwardingWrapperTester;
import java.util.Deque;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@code ForwardingDeque}.
 *

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import com.google.common.base.Function;
import com.google.common.testing.ForwardingWrapperTester;
import java.util.ListIterator;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**

package cmd

import (
	"context"
	"os"
	"reflect"
	"sync"
	"testing"

	"github.com/minio/minio/internal/dsync"
)

// Helper function to create a lock server for testing
func createLockTestServer(ctx context.Context, t *testing.T) (string, *lockRESTServer, string) {
	obj, fsDir, err := prepareFS(ctx)
	if err != nil {
		t.Fatal(err)
	}

import static com.google.common.cache.LocalCache.Strength.STRONG;
import static com.google.common.collect.Maps.immutableEntry;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.base.Function;
import com.google.common.cache.LocalCache.Strength;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import java.lang.ref.WeakReference;
import junit.framework.TestCase;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import com.google.common.base.Function;
import com.google.common.collect.testing.ListTestSuiteBuilder;
import com.google.common.collect.testing.TestStringListGenerator;
import com.google.common.collect.testing.features.CollectionFeature;

 * limitations under the License.
 */

package com.google.common.collect;

import static java.util.Arrays.asList;

import com.google.common.base.Function;
import com.google.common.collect.Multiset.Entry;
import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.BiPredicate;
import java.util.function.Predicate;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.Tuple3;

   *
   * @return the composition of the provided function and predicate
   */
  public static <A extends @Nullable Object, B extends @Nullable Object> Predicate<A> compose(
      Predicate<B> predicate, Function<A, ? extends B> function) {
    return new CompositionPredicate<>(predicate, function);
  }

  /**
   * Returns a predicate that evaluates to {@code true} if the {@code CharSequence} being tested