return nil, errors.New("AWS Role cannot be activated with static credentials or the web identity token file")
	case conf.Bucket == "":
		return nil, errors.New("no bucket name was provided")
	}

	// Credentials initialization
	var creds *credentials.Credentials
	switch {
	case conf.AWSRole:
		creds = credentials.New(&credentials.IAM{
			Client: &http.Client{

	return e.EncodeElement(int(tDays), startElement)
}

// Transition - transition actions for a rule in lifecycle configuration.
type Transition struct {
	XMLName      xml.Name       `xml:"Transition"`
	Days         TransitionDays `xml:"Days,omitempty"`
	Date         TransitionDate `xml:"Date,omitempty"`
	StorageClass string         `xml:"StorageClass,omitempty"`

	set bool
}

                auth != NtlmPasswordAuthentication.NULL &&
                NtlmPasswordAuthentication.NULL.equals( auth ) == false;
    }

    void ssn139() throws IOException {
        Name calledName = new Name( address.firstCalledName(), 0x20, null );
        do {
/* These Socket constructors attempt to connect before SO_TIMEOUT can be applied
            if (localAddr == null) {

     * location tracking.
     */
    String INPUT_SOURCE = "org.apache.maven.model.io.inputSource";

    /**
     * Name of the property used to store the project's root directory to use with
     * XInclude support.
     */
    String ROOT_DIRECTORY = "rootDirectory";

    /**
     * Reads the model from the specified file.
     *

        });
        return asJson(new ApiBulkResponse().items(Arrays.stream(response.getItems()).map(item -> {
            final Map<String, Object> itemMap = new HashMap<>();
            itemMap.put("result", item.status().name());
            if (item.isFailed()) {
                itemMap.put("message", item.getFailureMessage());
            } else {
                itemMap.put("id", item.getId());
            }
            return itemMap;

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override
    public String buildDisplayString(String name, boolean column, boolean relation) { // #pending
        return toString();
    }

    // ===================================================================================

    @Throws(Throwable::class)
    override fun invoke(
      proxy: Any,
      method: Method,
      args: Array<Any>?,
    ): Any? {
      val callArgs = args ?: arrayOf<Any?>()
      val methodName = method.name
      val returnType = method.returnType
      if (methodName == "supports" && Boolean::class.javaPrimitiveType == returnType) {
        return true // ALPN is supported.

    assertThat(cache.hitCount()).isEqualTo(0)
  }

  private fun corruptMetadata(corruptor: (String) -> String) {
    val metadataFile =
      fileSystem.allPaths.find {
        it.name.endsWith(".0")
      }

    if (metadataFile != null) {
      val contents =
        fileSystem.read(metadataFile) {
          readUtf8()
        }

      fileSystem.write(metadataFile) {

        this.receivedResponseMillis = cacheResponse.receivedResponseAtMillis
        val headers = cacheResponse.headers
        for (i in 0 until headers.size) {
          val fieldName = headers.name(i)
          val value = headers.value(i)
          when {
            fieldName.equals("Date", ignoreCase = true) -> {
              servedDate = value.toHttpDateOrNull()
              servedDateString = value

* `Optional`
* ...и др.

называются **Generic-типами** или **Generics**.

### Классы как типы

Вы также можете объявить класс как тип переменной.

Допустим, у вас есть класс `Person` с полем `name`:

```Python hl_lines="1-3"
{!../../docs_src/python_types/tutorial010.py!}
```

Тогда вы можете объявить переменную типа `Person`:

```Python hl_lines="6"
{!../../docs_src/python_types/tutorial010.py!}