}
    size++;
    return node;
  }

  /**
   * Removes the specified node from the linked list. This method is only intended to be used from
   * the {@code Iterator} classes. See also {@link LinkedListMultimap#removeAllNodes(Object)}.
   */
  private void removeNode(Node<K, V> node) {
    if (node.previous != null) {
      node.previous.next = node.next;
    } else { // node was head

Der Client erhält für diesen Request einen **500 Internal Server Error**, aber die Anwendung arbeitet bei den nächsten Requests weiter, anstatt einfach komplett abzustürzen.

### Größere Fehler – Abstürze { #bigger-errors-crashes }

Dennoch kann es vorkommen, dass wir Code schreiben, der **die gesamte Anwendung zum Absturz bringt** und so zum Absturz von Uvicorn und Python führt. 💥

En resumen, declaras **una vez** los tipos de parámetros, body, etc. como parámetros de función.

Lo haces con tipos estándar modernos de Python.

No tienes que aprender una nueva sintaxis, los métodos o clases de un paquete específico, etc.

Solo **Python** estándar.

Por ejemplo, para un `int`:

```Python
item_id: int
```

o para un modelo `Item` más complejo:

```Python
item: Item

/// tip | Consejo

Puedes usar cualquier otro paquete de bases de datos SQL o NoSQL que quieras (en algunos casos llamadas <abbr title="Object Relational Mapper – Mapeador Objeto-Relacional: un término elegante para un paquete donde algunas clases representan tablas SQL y las instances representan filas en esas tablas">"ORMs"</abbr>), FastAPI no te obliga a usar nada. 😎

///

        }
    }

    /**
     * Sets up Guice class loading mode to CHILD, if not already set.
     * Default Guice class loading mode uses a terminally deprecated JDK memory-access classes.
     */
    protected void setupGuiceClassLoading(C context) {
        if (System.getProperty("guice_custom_class_loading", "").isBlank()) {
            System.setProperty("guice_custom_class_loading", "CHILD");

### Recap

In summary, you declare **once** the types of parameters, body, etc. as function parameters.

You do that with standard modern Python types.

You don't have to learn a new syntax, the methods or classes of a specific library, etc.

Just standard **Python**.

For example, for an `int`:

```Python
item_id: int
```

or for a more complex `Item` model:

```Python
item: Item
```

But it was created before there existed Python type hints. So, to define every <abbr title="the definition of how data should be formed">schema</abbr> you need to use specific utils and classes provided by Marshmallow.

/// check | Inspired **FastAPI** to

Use code to define "schemas" that provide data types and validation, automatically.

///

   * within VarHandleAtomicHelper and AtomicReferenceFieldUpdaterAtomicHelper.
   *
   * Package-private "shouldn't" be necessary: The *AtomicHelper classes and AbstractFutureState
   * "should" be nestmates, so a call to MethodHandles.lookup or
   * AtomicReferenceFieldUpdater.newUpdater inside *AtomicHelper "should" have access to

O cliente receberá um **Erro Interno do Servidor 500** para essa solicitação, mas o aplicativo continuará funcionando para as próximas solicitações em vez de travar completamente.

### Erros maiores - Travamentos { #bigger-errors-crashes }

No entanto, pode haver casos em que escrevemos algum código que **trava todo o aplicativo**, fazendo com que o Uvicorn e o Python travem. 💥

// The Header.Size determines how many bytes can be written for the next file.
// If the current file is not fully written, then this returns an error.
// This implicitly flushes any padding necessary before writing the header.
func (tw *Writer) WriteHeader(hdr *Header) error {
	if err := tw.Flush(); err != nil {
		return err
	}
	tw.hdr = *hdr // Shallow copy of Header