}

    public PropertyMetaData findDeclaredProperty(String name) {
        return declaredProperties.get(name);
    }

    public Set<String> getDeclaredPropertyNames() {
        return declaredProperties.keySet();
    }

    public Set<PropertyMetaData> getDeclaredProperties() {
        return new HashSet<PropertyMetaData>(declaredProperties.values());
    }

    public Set<MethodMetaData> getDeclaredMethods() {

    // Each of the values added to the map should either still be there, or have seen a removal
    // notification.
    assertEquals(expectedKeys, Sets.union(cache.asMap().keySet(), removalNotifications.keySet()));
    assertTrue(Sets.intersection(cache.asMap().keySet(), removalNotifications.keySet()).isEmpty());
  }

  /**
   * Calls get() repeatedly from many different threads, and tests that all of the removed entries

Sie könnten sie auch als normale Funktion anstelle von `async def` definieren:

```Python hl_lines="7"
{!../../../docs_src/first_steps/tutorial003.py!}
```

!!! note "Hinweis"
    Wenn Sie den Unterschied nicht kennen, lesen Sie [Async: *„In Eile?“*](../async.md#in-eile){.internal-link target=_blank}.

### Schritt 5: den Inhalt zurückgeben

```Python hl_lines="8"
{!../../../docs_src/first_steps/tutorial001.py!}
```

      return size == keyToIndex().size();
    }

    K getKey(int index) {
      return keyToIndex().keySet().asList().get(index);
    }

    @CheckForNull
    abstract V getValue(int keyIndex);

    @Override
    ImmutableSet<K> createKeySet() {
      return isFull() ? keyToIndex().keySet() : super.createKeySet();
    }

    @Override
    public int size() {
      return size;
    }

        List<? extends GradleException> lenientErrors = duplicateFailure != null ? Collections.singletonList(duplicateFailure) : Collections.emptyList();

        final List<ReportAttribute> attributes = configuration.getAttributes().keySet().stream()
            .map(a -> convertAttributeInContainer(a, configuration.getAttributes(), project.getDependencies().getAttributesSchema()))
            .sorted(Comparator.comparing(ReportAttribute::getName))

Rufen Sie nun die Benutzerdaten aus der (gefakten) Datenbank ab, für diesen `username` aus dem Formularfeld.

Wenn es keinen solchen Benutzer gibt, geben wir die Fehlermeldung „Incorrect username or password“ zurück.

Für den Fehler verwenden wir die Exception `HTTPException`:

=== "Python 3.10+"

    ```Python hl_lines="3  79-81"

    Map<String, Integer> map = ImmutableSortedMap.of("one", 1, "two", 2, "three", 3);
    SerializableTester.reserializeAndAssert(map.entrySet());
    SerializableTester.reserializeAndAssert(map.keySet());
    assertEquals(
        Lists.newArrayList(map.values()),
        Lists.newArrayList(SerializableTester.reserialize(map.values())));
  }

    Map<String, Integer> map = ImmutableSortedMap.of("one", 1, "two", 2, "three", 3);
    SerializableTester.reserializeAndAssert(map.entrySet());
    SerializableTester.reserializeAndAssert(map.keySet());
    assertEquals(
        Lists.newArrayList(map.values()),
        Lists.newArrayList(SerializableTester.reserialize(map.values())));
  }

            ImmutableListMultimap<String, HashCode> outputPropertyHashes = metadata.getOutputPropertyHashes();
            encoder.writeSmallInt(outputPropertyHashes.keySet().size());
            for (Map.Entry<String, Collection<HashCode>> entry : outputPropertyHashes.asMap().entrySet()) {
                encoder.writeString(entry.getKey());

        List<AttributeDescriber> consumerDescribers = consumerSchema.getConsumerDescribers();
        Set<Attribute<?>> consumerAttributeSet = consumerAttributes.keySet();
        AttributeDescriber current = null;
        int maxSize = 0;
        for (AttributeDescriber consumerDescriber : consumerDescribers) {