$ python main.py

Hello World from Python
```

</div>

/// tip

You can read more about it at <a href="https://12factor.net/config" class="external-link" target="_blank">The Twelve-Factor App: Config</a>.

///

## Types and Validation { #types-and-validation }

$ python main.py

Hello World from Python
```

</div>

/// tip

Je kunt er meer over lezen op <a href="https://12factor.net/config" class="external-link" target="_blank">The Twelve-Factor App: Config</a>.

///

## Types en Validatie

* dependable: dependable (do not translate to "confiable" or "fiable")
* list (as in Python list): list
* context manager: context manager (do not translate to "gestor de contexto" or "administrador de contexto")
* a little bit: un poquito
* graph (data structure, as in "dependency graph"): grafo (do not translate to "gráfico")

     * @return an {@link Optional} containing the project name to resume from, or empty if not specified
     */
    @Nonnull
    Optional<String> resumeFrom();

    /**
     * Returns the list of specified reactor projects to build instead of all projects.
     *
     * @return an {@link Optional} containing the list of project names to build, or empty if not specified
     */
    @Nonnull
    Optional<List<String>> projects();

	context := new(build.Context)
	*context = build.Default
	context.Dir = filepath.Join(testenv.GOROOT(t), "src")

	w := NewWalker(context, context.Dir)
	for _, pkg := range w.stdPackages {
		if strings.HasPrefix(pkg, "vendor/") || strings.HasPrefix(pkg, "golang.org/x/") {
			t.Fatalf("stdPackages contains unexpected package %s", pkg)
		}
	}
}

func TestIssue64958(t *testing.T) {
	if testing.Short() {

  // Might also explore collocating all of [hash, next, predecessor, successor] fields of an
  // entry in a *single* long[], though that reduces the maximum size of the set by a factor of 2

  /**
   * Pointer to the predecessor of an entry in insertion order. ENDPOINT indicates a node is the
   * first node in insertion order; all values at indices ≥ {@link #size()} are UNSET.
   */

$ python main.py

Hello World from Python
```

</div>

/// tip

Подробнее об этом можно прочитать на сайте <a href="https://12factor.net/config" class="external-link" target="_blank">The Twelve-Factor App: Config</a>.

///

## Типизация и Валидация

Podemos hacerlo mejor...

## Qué hace a una dependencia

Hasta ahora has visto dependencias declaradas como funciones.

Pero esa no es la única forma de declarar dependencias (aunque probablemente sea la más común).

El factor clave es que una dependencia debe ser un "callable".

Un "**callable**" en Python es cualquier cosa que Python pueda "llamar" como una función.

    @Resource
    protected DynamicProperties systemProperties;

    private static final String[] bugReportLabels =
            { "file.separator", "file.encoding", "java.runtime.version", "java.vm.info", "java.vm.name", "java.vm.vendor",
                    "java.vm.version", "os.arch", "os.name", "os.version", "user.country", "user.language", "user.timezone" };

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

    /**
     * Executes the query command and returns a QueryBuilder.
     * @param context The query context containing search parameters.
     * @param query The Lucene query to execute.
     * @param boost The boost factor to apply.
     * @return The executed QueryBuilder.
     */
    public abstract QueryBuilder execute(final QueryContext context, final Query query, final float boost);

    /**