/// tip | Tipp

Pydantic verhält sich speziell, wenn Sie `Optional` oder `Union[Something, None]` ohne einen Defaultwert verwenden. Sie können darüber in der Pydantic Dokumentation unter <a href="https://docs.pydantic.dev/2.3/usage/models/#required-fields" class="external-link" target="_blank">Erforderliche optionale Felder</a> mehr erfahren.

///

Sie können die Modellkonfiguration von Pydantic verwenden, um jegliche `extra` Felder zu `verbieten`:

{* ../../docs_src/query_param_models/tutorial002_an_py310.py hl[10] *}

# Body – Felder { #body-fields }

So wie Sie zusätzliche Validierung und Metadaten in Parametern der *Pfadoperation-Funktion* mittels `Query`, `Path` und `Body` deklarieren, können Sie auch innerhalb von Pydantic-Modellen zusätzliche Validierung und Metadaten deklarieren, mittels Pydantics `Field`.

## `Field` importieren { #import-field }

Importieren Sie es zuerst:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}

/// warning | Achtung

package notify

import (
	"fmt"
	"strconv"
	"strings"

	"github.com/minio/minio/internal/config"
	"github.com/minio/minio/internal/event/target"
)

// SetNotifyKafka - helper for config migration from older config.
func SetNotifyKafka(s config.Config, name string, cfg target.KafkaArgs) error {
	if !cfg.Enable {
		return nil
	}

	if err := cfg.Validate(); err != nil {
		return err
	}

import java.security.cert.Certificate;
import java.security.cert.X509Certificate;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

/**
 * Simple test adaptable to show a failure in older versions of OkHttp
 * or Android SDKs.
 */
@RunWith(AndroidJUnit4.class)
public class IssueReproductionTest {
  @Test public void getFailsWithoutAdditionalCert() throws IOException {

	EnvCompressExtensionsLegacy      = "MINIO_COMPRESS_EXTENSIONS"
	EnvCompressMimeTypesLegacy2      = "MINIO_COMPRESS_MIME_TYPES"
)

// SetCompressionConfig - One time migration code needed, for migrating from older config to new for Compression.
func SetCompressionConfig(s config.Config, cfg Config) {
	if !cfg.Enabled {
		// No need to save disabled settings in new config.
		return
	}

# Formulardaten { #form-data }

Wenn Sie Felder aus Formularen statt JSON empfangen müssen, können Sie `Form` verwenden.

/// info | Info

Um Formulare zu verwenden, installieren Sie zuerst <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

  # - configurable notification endpoints
  # - configurable retries for the job (each retry skips successfully previously replaced objects)
  flags:
    filter:
      newerThan: "7d10h31s" # match objects newer than this value (e.g. 7d10h31s)
      olderThan: "7d" # match objects older than this value (e.g. 7d10h31s)
#      createdAfter: "date" # match objects created after "date"
#      createdBefore: "date" # match objects created before "date"

            '
        
      - name: Summary
        run: |
          echo "✅ Cleanup completed successfully"

  @GwtIncompatible // SerializableTester
  public void testSerializationIndirectSelfReference() {
    Multiset<MultisetHolder> multiset = HashMultiset.create();
    MultisetHolder holder = new MultisetHolder(multiset);
    multiset.add(holder, 2);
    Multiset<MultisetHolder> copy = SerializableTester.reserialize(multiset);
    assertEquals(2, copy.size());
    assertSame(copy, copy.iterator().next().member);
  }

  /*