Vamos discutir sobre `@lru_cache` logo mais.

Por enquanto, você pode considerar `get_settings()` como uma função normal.

///

E então podemos declarar essas configurações como uma dependência na função de operação da rota e utilizar onde for necessário.

{* ../../docs_src/settings/app02_an_py39/main.py hl[17,19:21] *}

### Configurações e testes

        this.maxRetryCount = maxRetryCount;
    }

    /**
     * Sets the default number of rows to process in a single batch.
     *
     * @param defaultRowSize the default row size
     */
    public void setDefaultRowSize(final int defaultRowSize) {
        this.defaultRowSize = defaultRowSize;
    }

    /**
     * Sets the interval between requests in milliseconds.
     *

        HashFunction hashFunction = (HashFunction) method.invoke(Hashing.class);
        assertTrue(
            "There should be at least 3 entries in KNOWN_HASHES for " + hashFunction,
            KNOWN_HASHES.row(hashFunction).size() >= 3);
      }
    }
  }

  public void testKnownUtf8Hashing() {
    for (Cell<HashFunction, String, String> cell : KNOWN_HASHES.cellSet()) {
      HashFunction func = cell.getRowKey();

* **Suporte ao editor**.
* **Verificações de tipo**.

... e o **FastAPI** usa as mesmas declarações para:

* **Definir requisitos**: dos parâmetros de rota, parâmetros da consulta, cabeçalhos, corpos, dependências, etc.
* **Converter dados**: da solicitação para o tipo necessário.
* **Validar dados**: provenientes de cada solicitação:

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   * this input {@code Future} fails, the returned {@code Future} fails with the same exception (and
   * the function is not invoked). Example usage:
   *
   * {@snippet :
   * ListenableFuture<List<Row>> rowsFuture =
   *     queryFuture.transform(QueryResult::getRows, executor);
   * }
   *
   * <p>When selecting an executor, note that {@code directExecutor} is dangerous in some cases. See

   *
   * <p>If the function throws an exception, that exception is used as the result of the derived
   * {@code ClosingFuture}.
   *
   * <p>Example usage:
   *
   * {@snippet :
   * ClosingFuture<List<Row>> rowsFuture =
   *     queryFuture.transform((closer, result) -> result.getRows(), executor);
   * }
   *
   * <p>When selecting an executor, note that {@code directExecutor} is dangerous in some cases. See

	if err := DB.Order("id ASC").Find(&rows).Error; err != nil {
		t.Fatalf("find auto_increment_struct fail, err: %v", err)
	}

	ids := make([]int64, 0, len(rows))
	for _, row := range rows {
		ids = append(ids, row.ID)
	}
	lastID := ids[len(ids)-1]

	if err := DB.Where("id IN (?)", ids).Delete(&AutoIncrementStruct{}).Error; err != nil {
		t.Fatalf("delete auto_increment_struct fail, err: %v", err)
	}

    if check_success(val):
      break
    if not suppress_default_error:
      print(error_msg % val)
    environ_cp[var_name] = ''
  else:
    raise UserInputError('Invalid %s setting was provided %d times in a row. '
                         'Assuming to be a scripting mistake.' %
                         (var_name, n_ask_attempts))

  if resolve_symlinks:
    val = os.path.realpath(val)
  environ_cp[var_name] = val

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