`Optional[Something]` ist tatsächlich eine Abkürzung für `Union[Something, None]`, diese beiden sind äquivalent.

Das bedeutet auch, dass Sie in Python 3.10 `Something | None` verwenden können:

//// tab | Python 3.10+

```Python hl_lines="1"

In this scenario, each one of the cleaners (including you) would be a processor, doing their part of the job.

/// note | Nota

FastAPI sabrá que el valor de `q` no es requerido debido al valor por defecto `= None`.

El `str | None` (Python 3.10+) o `Union` en `Union[str, None]` (Python 3.8+) no es utilizado por FastAPI para determinar que el valor no es requerido, sabrá que no es requerido porque tiene un valor por defecto de `= None`.

Pero agregar las anotaciones de tipos permitirá que tu editor te brinde un mejor soporte y detecte errores.

	rv=$?

	pkill minio
	sleep 3

	if [ "$rv" -ne 0 ]; then
		for i in $(seq 0 1); do
			echo "server$i log:"
			cat "$WORK_DIR/pool-minio-900$i.log"
		done
	fi

	for i in $(seq 0 1); do
		rm -f "$WORK_DIR/pool-minio-900$i.log"
	done

	return "$rv"
}

function run_test_pool_erasure_sets_ipv6() {
	start_minio_pool_erasure_sets_ipv6

	export SERVER_ENDPOINT="[::1]:9000"

 *
 * All event methods must execute fast, without external locking, cannot throw exceptions, attempt
 * to mutate the event parameters, or be re-entrant back into the client. Any IO - writing to files
 * or network should be done asynchronously.
 */
abstract class EventListener {
  /**
   * Invoked as soon as a call is enqueued or executed by a client. In case of thread or stream

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: Union[bool, None] = None


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}


@app.put("/items/{item_id}")
def update_item(item_id: int, item: Item):

      // When a listener is first added, we run a task that will wait for the delegate to finish,
      // and when it is done will run the listeners.
      if (hasListeners.compareAndSet(false, true)) {
        if (delegate.isDone()) {
          // If the delegate is already done, run the execution list immediately on the current
          // thread.
          executionList.execute();
          return;
        }

        fun run() {
          val progressListener = object : ProgressListener {
            private var firstUpdate = true

            override fun update(bytesWritten: Long, contentLength: Long, done: Boolean) {
              if (done) {
                println("completed")
              } else {
                if (firstUpdate) {
                  firstUpdate = false
                  if (contentLength == -1L) {

			content:    "hello",
			partNumber: "1",
			fault:      None,
			accessKey:  credentials.AccessKey,
			secretKey:  credentials.SecretKey,

			expectedAPIError: -1,
		},
		// Case where part number is invalid.
		1: {
			objectName: testObject,
			content:    "hello",
			partNumber: "9999999999999999999",
			fault:      None,
			accessKey:  credentials.AccessKey,

    // First response is still waiting.
    assertThat(firstResponseCode.get()).isEqualTo(0)
    // Second response is done.
    assertThat(secondResponseCode.get()).isEqualTo(200)
    latch.countDown()
    startsFirst.join()
    // And now it's done!
    assertThat(firstResponseCode.get()).isEqualTo(200)
    // (Still done).
    assertThat(secondResponseCode.get()).isEqualTo(200)
  }

  private fun buildRequestThread(