* {@code Optional.orElse(null)}.
   */
  @CheckForNull
  public abstract T orNull();

  /**
   * Returns an immutable singleton {@link Set} whose only element is the contained instance if it
   * is present; an empty immutable {@link Set} otherwise.
   *
   * <p><b>Comparison to {@code java.util.Optional}:</b> this method has no equivalent in Java 8's

				break
			}
		}
	} else {
		// If there is a specific pod name in ResourceName, use the agent in the pod.
		if len(dr.ResourceNames) != 1 {
			return nil, fmt.Errorf("`ResourceNames` must have one element when `all` flag is turned on")
		}
		slice := strings.SplitN(dr.ResourceNames[0], ".", 2)
		if len(slice) != 2 {
			return nil, fmt.Errorf("invalid resource name format: %v", slice)
		}
		podName := slice[0]

	}

	// next token must be ',' or ']'
	switch c = d.skipSpaces(); c {
	case ',':
		d.skipSpaces()
		goto scan
	case ']':
		goto out
	default:
		err = d.mkError(ErrSyntax, "after array element")
	}

out:
	d.depth--
	return array, err
}

// object accept valid JSON array value
func (d *Decoder) object() (map[string]interface{}, error) {
	d.depth++

Ale domyślnie wszystko **"po prostu działa"**.

### Walidacja

* Walidacja większości (lub wszystkich?) **typów danych** Pythona, w tym:
    * Obiektów JSON (`dict`).
    * Tablic JSON (`list`) ze zdefiniowanym typem elementów.
    * Pól tekstowych (`str`) z określeniem minimalnej i maksymalnej długości.
    * Liczb (`int`, `float`) z wartościami minimalnymi, maksymalnymi, itp.

* Walidacja bardziej egzotycznych typów danych, takich jak:

  static final String ERROR_SELF_LOOP = "self-loops are not allowed";
  static final String ERROR_EDGE_NOT_IN_GRAPH =
      "Should not be allowed to pass an edge that is not an element of the graph.";
  static final String ERROR_ADDED_SELF_LOOP = "Should not be allowed to add a self-loop edge.";
  static final String ERROR_ADDED_PARALLEL_EDGE = "Should not be allowed to add a parallel edge.";

    this(multimap.keySet().size());
    putAll(multimap);
  }

  /**
   * Adds a new node for the specified key-value pair before the specified {@code nextSibling}
   * element, or at the end of the list if {@code nextSibling} is null. Note: if {@code nextSibling}
   * is specified, it MUST be for a node for the same {@code key}!
   */
  @CanIgnoreReturnValue
  private Node<K, V> addNode(

<img src="/img/python-types/image05.png">

Sem tipos, isso é quase impossível de alcançar.

Observe que a variável `item` é um dos elementos da lista `items`.

E, ainda assim, o editor sabe que é um `str` e fornece suporte para isso.

#### Tuple e Set

Você faria o mesmo para declarar `tuple`s e `set`s:

//// tab | Python 3.9+

		// Output: 42
	}

In C, a function argument written as a fixed size array
actually requires a pointer to the first element of the array.
C compilers are aware of this calling convention and adjust
the call accordingly, but Go cannot. In Go, you must pass
the pointer to the first element explicitly: C.f(&C.x[0]).

Calling variadic C functions is not supported. It is possible to

        final URL url = ResourceUtil.getResource(toClassFile(referenceClass.getName()));
        final String[] path = referenceClass.getName().split("\\.");
        String baseUrl = url.toExternalForm();
        for (final String element : path) {
            final int pos = baseUrl.lastIndexOf('/');
            baseUrl = baseUrl.substring(0, pos);
        }
        return getTraverser(URLUtil.create(baseUrl + '/'), null, null);
    }

    /**

labels.file_auth_parameters=Parameter
labels.file_auth_file_crawling_config=Dateisystem-Konfiguration
labels.file_auth_scheme_samba=Samba
labels.file_auth_scheme_ftp=FTP
labels.pagination_page_guide_msg={0}/{1} ({2} Elemente)
labels.list_could_not_find_crud_table=Keine Daten.
labels.scheduledjob_configuration=Aufgaben-Zeitplaner
labels.scheduledjob_title_details=Aufgaben
labels.scheduledjob_name=Name
labels.scheduledjob_target=Ziel