O parâmetro de consulta `q` é do tipo `str | None`, isso significa que é do tipo `str`, mas também pode ser `None`, e de fato, o valor padrão é `None`, então o FastAPI saberá que não é obrigatório.

/// note | Nota

O FastAPI saberá que o valor de `q` não é obrigatório por causa do valor padrão `= None`.

Ter `str | None` permitirá que seu editor lhe ofereça melhor suporte e detecte erros.

///

        }
        if (domainName != null) {
            String str;

            if (type == SID_TYPE_DOMAIN) {
                str = domainName;
            } else if (type == SID_TYPE_WKN_GRP || domainName.equals("BUILTIN")) {
                if (type == SID_TYPE_UNKNOWN) {
                    str = toString();
                } else {
                    str = acctName;
                }
            } else {

class MethodsDependency:
    def synchronous(self, value: str) -> str:
        return value

    async def asynchronous(self, value: str) -> str:
        return value

    def synchronous_gen(self, value: str) -> Generator[str, None, None]:
        yield value

    async def asynchronous_gen(self, value: str) -> AsyncGenerator[str, None]:
        yield value


callable_dependency = CallableDependency()

@pytest.mark.parametrize(
    "path",
    ["/optional-list-str", "/model-optional-list-str"],
)
def test_optional_list_str_missing(path: str):
    client = TestClient(app)
    response = client.post(path)
    assert response.status_code == 200, response.text
    assert response.json() == {"p": None}


@pytest.mark.parametrize(
    "path",
    ["/optional-list-str", "/model-optional-list-str"],
)
def test_optional_list_str(path: str):

}


class Token(BaseModel):
    access_token: str
    token_type: str


class TokenData(BaseModel):
    username: str | None = None
    scopes: list[str] = []


class User(BaseModel):
    username: str
    email: str | None = None
    full_name: str | None = None
    disabled: bool | None = None


class UserInDB(User):
    hashed_password: str


password_hash = PasswordHash.recommended()

      assertFalse(str, c == Ascii.toUpperCase(c));
      assertTrue(str, Ascii.isLowerCase(c));
      assertFalse(str, Ascii.isUpperCase(c));
    }
  }

  public void testCharsUpper() {
    for (char c : UPPER.toCharArray()) {
      String str = String.valueOf(c);
      assertFalse(str, c == Ascii.toLowerCase(c));
      assertTrue(str, c == Ascii.toUpperCase(c));
      assertFalse(str, Ascii.isLowerCase(c));

        String str = info.toString();

        // Verify string contains expected elements
        assertNotNull(str);
        assertTrue(str.startsWith("SmbShareInfo["));
        assertTrue(str.contains("netName=" + TEST_NET_NAME));
        assertTrue(str.contains("type=0x"));
        assertTrue(str.contains("remark=" + TEST_REMARK));
        assertTrue(str.endsWith("]"));
    }

    @Test

    }
}


class Token(BaseModel):
    access_token: str
    token_type: str


class TokenData(BaseModel):
    username: str | None = None


class User(BaseModel):
    username: str
    email: str | None = None
    full_name: str | None = None
    disabled: bool | None = None


class UserInDB(User):
    hashed_password: str


password_hash = PasswordHash.recommended()

}


class Token(BaseModel):
    access_token: str
    token_type: str


class TokenData(BaseModel):
    username: Union[str, None] = None


class User(BaseModel):
    username: str
    email: Union[str, None] = None
    full_name: Union[str, None] = None
    disabled: Union[bool, None] = None


class UserInDB(User):
    hashed_password: str


password_hash = PasswordHash.recommended()

|------------|------|-------------|
| `title` | `str` | Назва API. |
| `summary` | `str` | Короткий опис API. <small>Доступно з OpenAPI 3.1.0, FastAPI 0.99.0.</small> |
| `description` | `str` | Більш детальний опис API. Може використовувати Markdown. |
| `version` | `string` | Версія API. Це версія Вашого додатка, а не OpenAPI. Наприклад, `2.5.0`. |
| `terms_of_service` | `str` |  URL до умов використання API. Якщо вказано, має бути у форматі URL. |