}
    }

    @Test
    void testConstructorAndGettersWithValidTicket() throws IOException, GeneralSecurityException, PACDecodingException {
        // Test successful instantiation and getter methods with a valid ticket
        byte[] validToken = createTestTicketBytes(new BigInteger(KerberosConstants.KERBEROS_VERSION), SERVER_REALM, SERVER_PRINCIPAL_NAME,
                ENCRYPTION_TYPE, ENCRYPTED_DATA, null);

    "name": "Foo",
    "description": "An optional description",
    "price": 45.2,
    "tax": 3.5
}
```

...as `description` and `tax` are optional (with a default value of `None`), this JSON "`object`" would also be valid:

```JSON
{
    "name": "Foo",
    "price": 45.2
}
```

## Declare it as a parameter { #declare-it-as-a-parameter }

	t.Run("Account", func(t *testing.T) {
		AssertObjEqual(t, user.Account, expect.Account, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "UserID", "Number")

		if user.Account.Number != "" {
			if !user.Account.UserID.Valid {
				t.Errorf("Account's foreign key should be saved")
			} else {
				var account Account
				db(unscoped).First(&account, "user_id = ?", user.ID)

```

</div>

Então, vá para a interface `/docs`, você verá que o **FastAPI** está usando esses **modelos** para **documentar** a API, e ele também os usará para **serializar** e **validar** os dados.

<div class="screenshot">
<img src="/img/tutorial/sql-databases/image01.png">
</div>

## Atualizar o App com Múltiplos Modelos { #update-the-app-with-multiple-models }

     */
    protected void processRobotsTxt(final String url) {
        if (StringUtil.isBlank(url)) {
            throw new CrawlerSystemException("HTTP URL is null or empty. Cannot process robots.txt without a valid URL.");
        }

        if (robotsTxtHelper == null || !robotsTxtHelper.isEnabled()) {
            // not support robots.txt
            return;
        }

        // crawler context

      ) ?: return null

    // If we coalesced our connection, remember the replaced connection's route. That way if the
    // coalesced connection later fails we don't waste a valid route.
    if (planToReplace != null) {
      nextRouteToTry = planToReplace.route
      planToReplace.closeQuietly()
    }

    call.eventListener.connectionAcquired(call, result)

        assertThrows(SmbException.class, session::treeConnectLogon);
        verify(session, never()).getSmbTree(anyString(), isNull());
    }

    @Test
    @DisplayName("treeConnectLogon: valid share connects via tree")
    void testTreeConnectLogonValid() throws Exception {
        SmbSessionImpl session = spy(newSession());
        when(configuration.getLogonShare()).thenReturn("LOGON$");

	// have the same port
	if addr1Local && addr2Local {
		if port1 == port2 {
			return true, nil
		}
	}
	return false, nil
}

// CheckLocalServerAddr - checks if serverAddr is valid and local host.
func CheckLocalServerAddr(serverAddr string) error {
	host, err := xnet.ParseHost(serverAddr)
	if err != nil {
		return config.ErrInvalidAddressFlag(err)
	}

pkg database/sql, type Null[$0 interface{}] struct #60370
pkg database/sql, type Null[$0 interface{}] struct, V $0 #60370
pkg database/sql, type Null[$0 interface{}] struct, Valid bool #60370
pkg debug/elf, const R_LARCH_64_PCREL = 109 #63725
pkg debug/elf, const R_LARCH_64_PCREL R_LARCH #63725
pkg debug/elf, const R_LARCH_ADD6 = 105 #63725
pkg debug/elf, const R_LARCH_ADD6 R_LARCH #63725

def indent_xml(elem, level=0) -> None:
  """Indents and newlines the XML for better output."""
  indent_str = '\n' + level * '  '
  if len(elem):  # pylint: disable=g-explicit-length-test  # `if elem` not valid
    if not elem.text or not elem.text.strip():
      elem.text = indent_str + '  '
    if not elem.tail or not elem.tail.strip():
      elem.tail = indent_str
    for elem in elem:
      indent_xml(elem, level + 1)