* Objetos `datetime`.
    * Objetos `UUID`.
    * Modelos de base de datos.
    * ...y muchos más.
* Documentación interactiva automática de la API, incluyendo 2 interfaces de usuario alternativas:
    * Swagger UI.
    * ReDoc.

---

Volviendo al ejemplo de código anterior, **FastAPI**:

* Validará que haya un `item_id` en el path para requests `GET` y `PUT`.

   *
   * <p>This method is declared to accept any 2 {@code Comparable} objects, even if they are not <a
   * href="https://docs.oracle.com/javase/tutorial/collections/interfaces/order.html">mutually
   * comparable</a>. If you pass objects that are not mutually comparable, this method may throw an
   * exception. (The reason for this decision is lost to time, but the reason <i>might</i> be that

* Эти схемы будут частью сгенерированной схемы OpenAPI и будут использоваться автоматической документацией <abbr title="User Interfaces – Пользовательские интерфейсы">UIs</abbr>.

## Автоматическая документация { #automatic-docs }

JSON Schema ваших моделей будет частью сгенерированной схемы OpenAPI и будет отображаться в интерактивной документации API:

)

// toString - Safely convert interface to string without causing panic.
func toString(val any) string {
	switch v := val.(type) {
	case string:
		return v
	default:
		return ""
	}
}

// toLowerString - safely convert interface to lower string
func toLowerString(val any) string {
	return strings.ToLower(toString(val))
}

// toInteger _ Safely convert interface to integer without causing panic.

import static org.apache.maven.internal.impl.CoreUtils.map;

/**
 * This implementation of {@code ProjectManager} is explicitly bound to
 * both {@code ProjectManager} and {@code Service} interfaces so that it can be retrieved using
 * {@link InternalSession#getAllServices()}.
 */
@Named
@Typed({ProjectManager.class, Service.class})
@SessionScoped
public class DefaultProjectManager implements ProjectManager {

  /**
   * Flattens a class's type hierarchy into a set of {@code Class} objects including all
   * superclasses (transitively) and all interfaces implemented by these superclasses.
   */
  @VisibleForTesting
  static ImmutableSet<Class<?>> flattenHierarchy(Class<?> concreteClass) {
    return flattenHierarchyCache.getUnchecked(concreteClass);
  }

      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions

whole, an original work of authorship. For the purposes of this License, 
Derivative Works shall not include works that remain separable from, or 
merely link (or bind by name) to the interfaces of, the Work and Derivative 
Works thereof. 

"Contribution" shall mean any work of authorship, including the original 
version of the Work and any modifications or additions to that Work or 

* Esto también permite el uso de **generación de código cliente automática** en muchos idiomas.

### Documentación automática { #automatic-docs }

Interfaces web de documentación y exploración de APIs interactivas. Como el framework está basado en OpenAPI, hay múltiples opciones, 2 incluidas por defecto.

    * `datetime` objects.
    * `UUID` objects.
    * Database models.
    * ...and many more.
* Automatic interactive API documentation, including 2 alternative user interfaces:
    * Swagger UI.
    * ReDoc.

---

Coming back to the previous code example, **FastAPI** will:

* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.