* elements and to build again.
   *
   * @since 2.0
   */
  public static class Builder<E> extends ImmutableCollection.Builder<E> {
    /*
     * `impl` is null only for instances of the subclass, ImmutableSortedSet.Builder. That subclass
     * overrides all the methods that access it here. Thus, all the methods here can safely assume
     * that this field is non-null.
     */
    private @Nullable SetBuilderImpl<E> impl;

#### `RequestValidationError` vs `ValidationError`

/// warning | Advertencia

Estos son detalles técnicos que podrías omitir si no es importante para ti en este momento.

///

`RequestValidationError` es una subclase de <a href="https://docs.pydantic.dev/latest/concepts/models/#error-handling" class="external-link" target="_blank">`ValidationError`</a> de Pydantic.

### Crear una clase `Enum`

Importa `Enum` y crea una subclase que herede de `str` y de `Enum`.

Al heredar de `str`, la documentación de la API podrá saber que los valores deben ser de tipo `string` y podrá representarlos correctamente.

            }

            @Override
            public String toString() {
                return "Entry(" + name + ")";
            }
        };
    }

    // Controllable concrete subclass to drive behavior deterministically
    private static class TestIterator extends DirFileEntryEnumIteratorBase {
        private static FileEntry staticInitial;
        private static List<FileEntry[]> staticPages;

///

{* ../../docs_src/security/tutorial005_an_py310.py hl[5,140,171] *}

/// info | Informações Técnicas

`Security` é na verdade uma subclasse de `Depends`, e ele possui apenas um parâmetro extra que veremos depois.

    }

    @Test
    @DisplayName("connectWrapException wraps UnknownHostException and IOException")
    void connectWrapException_wraps_io_and_unkhost() throws Exception {
        // Subclass to control connect() behavior
        SmbTreeConnection c = new SmbTreeConnection(ctx) {
            @Override
            public SmbTreeHandleImpl connect(SmbResourceLocatorImpl loc) throws java.io.IOException {

 *   <li><b>Thread safety.</b> It is safe to access this collection concurrently from multiple
 *       threads.
 *   <li><b>Integrity.</b> This type cannot be subclassed outside this package (which would allow
 *       these guarantees to be violated).
 * </ul>
 *
 * <h4>"Interfaces", not implementations</h4>
 *

`FastAPI` es en realidad una subclase de `Starlette`. Así que, si ya conoces o usas Starlette, la mayoría de las funcionalidades funcionarán de la misma manera.

///

### Criando o objeto `Settings`

Importe a classe `BaseSettings` do Pydantic e crie uma nova subclasse, de forma parecida com um modelo do Pydantic.

Os atributos da classe são declarados com anotações de tipo, e possíveis valores padrão, da mesma maneira que os modelos do Pydantic.

import jcifs.smb.RequestParam;

/**
 * This class simplifies communication for protocols that support
 * multiplexing requests. It encapsulates a stream and some protocol
 * knowledge (provided by a concrete subclass) so that connecting,
 * disconnecting, sending, and receiving can be syncronized
 * properly. Apparatus is provided to send and receive requests
 * concurrently.
 */

/**