{* ../../docs_src/sql_databases/tutorial002_an_py310.py ln[56:62] hl[56:58] *}

/// tip | Dica

Agora usamos `response_model=HeroPublic` em vez da **anotação de tipo de retorno** `-> HeroPublic` porque o valor que estamos retornando na verdade *não* é um `HeroPublic`.

    checkHashCode(cartesianProduct(set(1, num), set(2, num - 1), set(3, num + 1)));

    // a bigger one
    checkHashCode(
        cartesianProduct(set(1, num, num + 1), set(2), set(3, num + 2), set(4, 5, 6, 7, 8)));
  }

  public void testPowerSetEmpty() {
    ImmutableSet<Integer> elements = ImmutableSet.of();
    Set<Set<Integer>> powerSet = powerSet(elements);
    assertEquals(1, powerSet.size());

	r.Peek(1)
	r.UnreadRune()
	r.ReadRune() // Used to panic here
}

var testOutput = []byte("0123456789abcdefghijklmnopqrstuvwxy")
var testInput = []byte("012\n345\n678\n9ab\ncde\nfgh\nijk\nlmn\nopq\nrst\nuvw\nxy")
var testInputrn = []byte("012\r\n345\r\n678\r\n9ab\r\ncde\r\nfgh\r\nijk\r\nlmn\r\nopq\r\nrst\r\nuvw\r\nxy\r\n\n\r\n")

// TestReader wraps a []byte and returns reads of a specific length.
type testReader struct {

### Translations

* 🌐 Add French translation for `docs/fr/docs/advanced/index.md`. PR [#5673](https://github.com/tiangolo/fastapi/pull/5673) by [@axel584](https://github.com/axel584).