if( n == null ) {
            n = "null";
        } else if( n.charAt( 0 ) == 0x01 ) {
            char c[] = n.toCharArray();
            c[0] = '.';
            c[1] = '.';
            c[14] = '.';
            n = new String( c );
        }

        sb.append( n ).append( "<" ).append( Hexdump.toHexString( hexCode, 2 )).append( ">" );
        if( scope != null ) {

```

////

//// tab | Python 3.9+

```Python hl_lines="13"
{!> ../../docs_src/dependencies/tutorial005_an_py39.py!}
```

////

//// tab | Python 3.6+

```Python hl_lines="14"
{!> ../../docs_src/dependencies/tutorial005_an.py!}
```

////

//// tab | Python 3.10 без Annotated

/// tip | "Подсказка"

Предпочтительнее использовать версию с аннотацией, если это возможно.

```

////

//// tab | Python 3.9+

```Python hl_lines="13"
{!> ../../docs_src/dependencies/tutorial005_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="14"
{!> ../../docs_src/dependencies/tutorial005_an.py!}
```

////

//// tab | Python 3.10 non-Annotated

/// tip | "Dica"

Utilize a versão com `Annotated` se possível.

///

```

////

And a `description`:

//// tab | Python 3.10+

```Python hl_lines="14"
{!> ../../docs_src/query_params_str_validations/tutorial008_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="14"
{!> ../../docs_src/query_params_str_validations/tutorial008_an_py39.py!}
```

////

//// tab | Python 3.8+

```

## Adicionar a tarefa em segundo plano

Dentro de sua _função de operação de caminho_, passe sua função de tarefa para o objeto _tarefas em segundo plano_ com o método `.add_task()`:

```Python hl_lines="14"
{!../../docs_src/background_tasks/tutorial001.py!}
```

`.add_task()` recebe como argumentos:

- Uma função de tarefa a ser executada em segundo plano (`write_notification`).

## Add the background task

Inside of your *path operation function*, pass your task function to the *background tasks* object with the method `.add_task()`:

{* ../../docs_src/background_tasks/tutorial001.py hl[14] *}

`.add_task()` receives as arguments:

* A task function to be run in the background (`write_notification`).
* Any sequence of arguments that should be passed to the task function in order (`email`).

  postgres:
    strategy:
      matrix:
        dbversion: ['postgres:latest', 'postgres:15', 'postgres:14', 'postgres:13']
        go: ['1.22', '1.21', '1.20']
        platform: [ubuntu-latest] # can not run in macOS and Windows
    runs-on: ${{ matrix.platform }}

    services:
      postgres:

    static final int SECURITY_USER  = 0x01;

    static final int CMD_OFFSET        = 4;
    static final int ERROR_CODE_OFFSET = 5;
    static final int FLAGS_OFFSET      = 9;
    static final int SIGNATURE_OFFSET  = 14;
    static final int TID_OFFSET        = 24;
    static final int HEADER_LENGTH     = 32;

    static final long MILLISECONDS_BETWEEN_1970_AND_1601 = 11644473600000L;
    static final TimeZone TZ = TimeZone.getDefault();

        if ( n == null ) {
            n = "null";
        }
        else if ( n.charAt(0) == 0x01 ) {
            char c[] = n.toCharArray();
            c[ 0 ] = '.';
            c[ 1 ] = '.';
            c[ 14 ] = '.';
            n = new String(c);
        }

        sb.append(n).append("<").append(Hexdump.toHexString(this.hexCode, 2)).append(">");
        if ( this.scope != null ) {

    testSort(new byte[] {}, 0, 0, new byte[] {});
    testSort(new byte[] {2}, 0, 1, new byte[] {2});
    testSort(new byte[] {2, 1, 0}, 0, 2, new byte[] {1, 2, 0});
    testSort(new byte[] {2, GREATEST, 1, LEAST}, 1, 4, new byte[] {2, LEAST, 1, GREATEST});
  }

  public void testSortDescending() {
    testSortDescending(new byte[] {}, new byte[] {});
    testSortDescending(new byte[] {1}, new byte[] {1});