Cuando instalas FastAPI con `pip install "fastapi[standard]"` viene con el grupo `standard` de dependencias opcionales:

Usadas por Pydantic:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - para validación de correos electrónicos.

Usadas por Starlette:

* <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - Requerido si deseas usar el `TestClient`.

Utilizado pelo Pydantic:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - para validação de email.

Utilizado pelo Starlette:

* <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - Obrigatório caso você queira utilizar o `TestClient`.

## 선택가능한 의존성

Pydantic이 사용하는:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - 이메일 유효성 검사.

Starlette이 사용하는:

* <a href="https://www.python-httpx.org" target="_blank"><code>HTTPX</code></a> - `TestClient`를 사용하려면 필요.

        }
    }

    /**
     * Attempts to obtain login credentials using SPNEGO authentication.
     *
     * This method processes the HTTP request to extract and validate SPNEGO
     * authentication tokens. It handles the SPNEGO handshake process and
     * extracts the user principal from successful authentication.
     *

		if err != nil {
			return err
		}
		ctxt.Layout.pools = append(ctxt.Layout.pools, poolDisksLayout{cmdline: arg, layout: setArgs})
	}
	return
}

// CreateServerEndpoints - validates and creates new endpoints from input args, supports
// both ellipses and without ellipses transparently.
func createServerEndpoints(serverAddr string, poolArgs []poolDisksLayout, legacy bool) (

* Deleting federation-push.sh ([#27400](https://github.com/kubernetes/kubernetes/pull/27400), [@nikhiljindal](https://github.com/nikhiljindal))
* Validate-cluster finishes shortly after at most ALLOWED_NOTREADY_NODE… ([#26778](https://github.com/kubernetes/kubernetes/pull/26778), [@gmarek](https://github.com/gmarek))

			return nil, nil, fmt.Errorf("xlMetaV2.Load version(%d), CRC mismatch, want 0x%x, got 0x%x", minor, crc, got)
		}
	} else {
		return nil, nil, err
	}
	data = buf
	if data.validate() != nil {
		data.repair()
	}

	return meta, data, nil
}

type xlMetaV2ShallowVersion struct {
	header xlMetaV2VersionHeader
	meta   []byte
}

        headers_.add(name, value.toString())
      }

    /**
     * Adds a new header with the name and value. This may be used to add multiple headers with the
     * same name. Unlike [addHeader] this does not validate the name and
     * value.
     */
    public fun addHeaderLenient(
      name: String,
      value: Any,
    ): Builder =
      apply {
        addHeaderLenient(headers_, name, value.toString())

		return nil, err
	}
	return &req, nil
}

// validate a RestoreObjectRequest as per AWS S3 spec https://docs.aws.amazon.com/AmazonS3/latest/API/API_RestoreObject.html
func (r *RestoreObjectRequest) validate(ctx context.Context, objAPI ObjectLayer) error {
	if r.Type != SelectRestoreRequest && !r.SelectParameters.IsEmpty() {

Next it will convert and validate the data. So, when you use that `settings` object, you will have data of the types you declared (e.g. `items_per_user` will be an `int`).

### Use the `settings` { #use-the-settings }