return &PutObjReader{Reader: rawReader, rawReader: rawReader}
}

func sealETag(encKey crypto.ObjectKey, md5CurrSum []byte) []byte {
	var emptyKey [32]byte
	if bytes.Equal(encKey[:], emptyKey[:]) {
		return md5CurrSum
	}
	return encKey.SealETag(md5CurrSum)
}

func sealETagFn(key crypto.ObjectKey) SealMD5CurrFn {
	fn := func(md5sumcurr []byte) []byte {

            if (fields != null) {
                final Map<String, Object> docMap = fields.entrySet().stream()
                        .collect(Collectors.toMap(Entry<String, DocumentField>::getKey, e -> (Object) e.getValue().getValues()));
                docMap.put(fessConfig.getIndexFieldId(), hit.getId());
                docMap.put(fessConfig.getIndexFieldVersion(), hit.getVersion());

Ich denke, `Union[SomeType, None]` ist expliziter bezüglich seiner Bedeutung.

Es geht nur um Wörter und Namen. Aber diese Worte können beeinflussen, wie Sie und Ihre Teamkollegen über den Code denken.

Nehmen wir zum Beispiel diese Funktion:

```Python hl_lines="1  4"
{!../../docs_src/python_types/tutorial009c.py!}

        // N.B. There will only be an entry in the map if the service has started
        for (Entry<Service, Stopwatch> entry : startupTimers.entrySet()) {
          Service service = entry.getKey();
          Stopwatch stopwatch = entry.getValue();
          if (!stopwatch.isRunning() && !(service instanceof NoOpService)) {
            loadTimes.add(Maps.immutableEntry(service, stopwatch.elapsed(MILLISECONDS)));

        // N.B. There will only be an entry in the map if the service has started
        for (Entry<Service, Stopwatch> entry : startupTimers.entrySet()) {
          Service service = entry.getKey();
          Stopwatch stopwatch = entry.getValue();
          if (!stopwatch.isRunning() && !(service instanceof NoOpService)) {
            loadTimes.add(Maps.immutableEntry(service, stopwatch.elapsed(MILLISECONDS)));

      }
      // Recurse the edges.
      for (Entry<LockGraphNode, ExampleStackTrace> entry : allowedPriorLocks.entrySet()) {
        LockGraphNode preAcquiredLock = entry.getKey();
        found = preAcquiredLock.findPathTo(node, seen);
        if (found != null) {
          // One of this node's allowedPriorLocks found a path. Prepend an

 *       have these.
 * </ul>
 *
 * <p><b>There are no plans to deprecate this class in the foreseeable future.</b> However, we do
 * gently recommend that you prefer the new, standard Java class whenever possible.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/UsingAndAvoidingNullExplained#optional">using {@code

      builder.putAll(map);
      for (Entry<TypeVariableKey, ? extends Type> mapping : mappings.entrySet()) {
        TypeVariableKey variable = mapping.getKey();
        Type type = mapping.getValue();
        checkArgument(!variable.equalsType(type), "Type variable %s bound to itself", variable);
        builder.put(variable, type);
      }

    @Override
    public int hashCode() {
      synchronized (mutex) {
        return delegate().hashCode();
      }
    }

    @Override
    public K getKey() {
      synchronized (mutex) {
        return delegate().getKey();
      }
    }

    @Override
    public V getValue() {
      synchronized (mutex) {
        return delegate().getValue();
      }
    }

    @Override
    public int hashCode() {
      synchronized (mutex) {
        return delegate().hashCode();
      }
    }

    @Override
    public K getKey() {
      synchronized (mutex) {
        return delegate().getKey();
      }
    }

    @Override
    public V getValue() {
      synchronized (mutex) {
        return delegate().getValue();
      }
    }