| Parameter | Type | Description |
|------------|------|-------------|
| `title` | `str` | The title of the API. |
| `summary` | `str` | A short summary of the API. <small>Available since OpenAPI 3.1.0, FastAPI 0.99.0.</small> |
| `description` | `str` | A short description of the API. It can use Markdown. |

	if s == nil {
		return "<nil>"
	}
	if _, ok := seen[s.Id]; ok {
		return s.Name
	}
	seen[s.Id] = true
	str := s.Name + " = struct { "
	for _, f := range s.Field {
		str += fmt.Sprintf("%s %s; ", f.Name, f.Id.gobType().safeString(seen))
	}
	str += "}"
	return str
}

func (s *structType) string() string { return s.safeString(make(map[typeId]bool)) }

            int pos;
            final String str;

            private Scanner(String string) {
                this.str = string;
            }

            boolean hasDigit() {
                return pos < str.length() && Character.isDigit(str.charAt(pos));
            }

            boolean isSeparatorAndDigit(char... separators) {

enum CaseFormatType {
  LOWER_CAMEL,
  UPPER_CAMEL,
  LOWER_SNAKE,
  UPPER_SNAKE,
};

string FormatStringCase(const string &str, CaseFormatType to,
                        const char delimiter = '_') {
  const bool from_snake =
      (str == str_util::Uppercase(str)) || (str == str_util::Lowercase(str));
  const bool toUpper = (to == UPPER_CAMEL || to == UPPER_SNAKE);
  const bool toSnake = (to == LOWER_SNAKE || to == UPPER_SNAKE);

        "MultipleFields"          | "new MultipleFields('str', 42, 'other_str')"                                                     | "MultipleFields[str=str, number=42, other=other_str]"
        "WithNestedRecords"       | "new WithNestedRecords('str', new MultipleFields('str', 42, 'other_str'), new ZeroFields(), 66)" | "WithNestedRecords[str=str, mf=MultipleFields[str=str, number=42, other=other_str], zf=ZeroFields[], number=66]"

    * Wird in Requests und Responses als `str` dargestellt.
* `datetime.datetime`:
    * Ein Python-`datetime.datetime`.
    * Wird in Requests und Responses als `str` im ISO 8601-Format dargestellt, etwa: `2008-09-15T15:53:00+05:00`.
* `datetime.date`:
    * Python-`datetime.date`.
    * Wird in Requests und Responses als `str` im ISO 8601-Format dargestellt, etwa: `2008-09-15`.
* `datetime.time`:

    return "insiders" in version


def get_en_config() -> Dict[str, Any]:
    return mkdocs.utils.yaml_load(en_config_path.read_text(encoding="utf-8"))


def get_lang_paths() -> List[Path]:
    return sorted(docs_path.iterdir())


def lang_callback(lang: Optional[str]) -> Union[str, None]:
    if lang is None:
        return None
    lang = lang.lower()
    return lang

```

O uso de `Opcional [str]` em vez de apenas `str` permitirá que o editor o ajude a detectar erros, onde você pode estar assumindo que um valor é sempre um `str`, quando na verdade também pode ser `None`.

#### Tipos genéricos

Esses tipos que usam parâmetros de tipo entre colchetes, como:

* `List`
* `Tuple`
* `Set`
* `Dict`
* `Opcional`
* ...e outros.

class DurationTest extends Specification {
    def "millisecond durations have useful string formats"() {
        expect:
        Duration.millis(millis).toString() == str
        Duration.millis(millis).format() == formatted

        where:
        millis  | str          | formatted
        0       | "0 ms"       | "0 ms"
        1       | "1 ms"       | "1 ms"
        0.123   | "0.123 ms"   | "0.123 ms"

func NewNodePortAddresses(family v1.IPFamily, cidrStrings []string) *NodePortAddresses {
	npa := &NodePortAddresses{}

	// Filter CIDRs to correct family
	for _, str := range cidrStrings {
		if (family == v1.IPv4Protocol) == netutils.IsIPv4CIDRString(str) {
			npa.cidrStrings = append(npa.cidrStrings, str)
		}
	}
	if len(npa.cidrStrings) == 0 {
		if family == v1.IPv4Protocol {
			npa.cidrStrings = []string{IPv4ZeroCIDR}
		} else {