Aquí, la función manejadora del evento `shutdown` escribirá una línea de texto `"Application shutdown"` a un archivo `log.txt`.

/// info | Información

En la función `open()`, el `mode="a"` significa "añadir", por lo tanto, la línea será añadida después de lo que sea que esté en ese archivo, sin sobrescribir el contenido anterior.

///

/// tip | Consejo

			m.bucketsMeasurement[BucketOptions{Name: "bucket", ReplicationARN: "arn"}].updateExponentialMovingAverage(tt.fields.endTime)
			got := m.GetReport(SelectBuckets())
			if !reflect.DeepEqual(got, tt.want) {
				t.Errorf("GetReport() = %v, want %v", got, tt.want)
			}
			m.bucketsMeasurement[BucketOptions{Name: "bucket", ReplicationARN: "arn"}].incrementBytes(tt.fields.update2)

			t.Errorf("Test%d (%s): Size  got %d , want %d", i+1, test.name, actualSize, test.expectedCompletedSize)
		}
		if repStatusStr := rinfos.ReplicationStatusInternal(); repStatusStr != test.expectedReplicationStatusInternal {
			t.Errorf("Test%d (%s): Internal replication status  got %s , want %s", i+1, test.name, repStatusStr, test.expectedReplicationStatusInternal)
		}

GOT=$(echo $GOT | jq "${JQUERY}")

if [ "$(echo "$GOT" | jq -S .)" = "$(echo "$WANT" | jq -S .)" ]; then
	echo "script passed" >resiliency-verify-healing.log
else
	echo "Error during healing:"
	echo "----GOT: "$GOT
	echo "---WANT: "$WANT

---

Se você simplesmente não sabe, use apenas `def`.

---

**Note**: Você pode misturar `def` e `async def` nas suas *funções de operação de rota* tanto quanto necessário e definir cada função usando a melhor opção para você. FastAPI irá fazer a coisa certa com elas.

De qualquer forma, em ambos os casos acima, FastAPI irá trabalhar assincronamente e ser extremamente rápido.

If you want to return additional status codes apart from the main one, you can do that by returning a `Response` directly, like a `JSONResponse`, and set the additional status code directly.

For example, let's say that you want to have a *path operation* that allows to update items, and returns HTTP status codes of 200 "OK" when successful.

type Checker struct {
	c io.Closer
	r io.Reader
	h hash.Hash

	want []byte
}

// NewChecker ensures that content with the specified length is read from rc.
// Calling Close on this will close upstream.
func NewChecker(rc io.ReadCloser, h hash.Hash, wantSum []byte, length int64) *Checker {
	return &Checker{c: rc, r: ioutil.HardLimitReader(rc, length), h: h, want: wantSum}
}

// Read satisfies io.Reader

This means that you can send only the data that you want to update, leaving the rest intact.

/// note

`PATCH` is less commonly used and known than `PUT`.

And many teams use only `PUT`, even for partial updates.

You are **free** to use them however you want, **FastAPI** doesn't impose any restrictions.

But this guide shows you, more or less, how they are intended to be used.

    # o variousMap: (NotRequired - Default map:{})
    #  The various settings about JDBC task mainly.
    #
    ; variousMap = map:{
        # o objectTypeTargetList: (NotRequired - Default list:{TABLE;VIEW})
        #  If you want to include other object types in generating target,
        #  you should specify the list of included object types as adding.
        #    e.g. Synonym of Oracle --> list:{TABLE ; VIEW ; SYNONYM}

///

## Previous Steps Before Starting { #previous-steps-before-starting }

There are many cases where you want to perform some steps **before starting** your application.

For example, you might want to run **database migrations**.

But in most cases, you will want to perform these steps only **once**.

So, you will want to have a **single process** to perform those **previous steps**, before starting the application.