Si tienes una versión anterior, obtendrás errores al intentar usar `Annotated`.

Asegúrate de [Actualizar la versión de FastAPI](../../deployment/versions.md#upgrading-the-fastapi-versions){.internal-link target=_blank} al menos a la 0.95.1 antes de usar `Annotated`.

///

### Importar `Depends`

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[3] *}

### Declarar la dependencia, en el "dependant"

Nehmen wir an, Sie haben eine benutzerdefinierte Exception `UnicornException`, die Sie (oder eine Bibliothek, die Sie verwenden) `raise`n könnten.

sleep 1

echo "Copying data to source sitea/olockbucket"
./mc cp --quiet /etc/hosts sitea/olockbucket
sleep 1

echo "Verifying the metadata difference between source and target"
if diff -pruN <(./mc stat --no-list --json sitea/bucket/hosts | jq .) <(./mc stat --no-list --json siteb/bucket/hosts | jq .) | grep -q 'COMPLETED\|REPLICA'; then
	echo "verified sitea-> COMPLETED, siteb-> REPLICA"
fi

### Check the docs { #check-the-docs }

Now you can start your app and go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

You will see your docs have the normal *path operations* and now also some **webhooks**:

    } catch (ClassCastException e) {
      return false;
    }
  }

  @Override
  public boolean containsAll(Collection<?> targets) {
    for (Object target : targets) {
      if (target == null) {
        // This set never contains null.  We need to explicitly check here
        // because some comparator might throw NPE (e.g. the natural ordering).
        return false;
      }
    }

                                <c:if test="${editable}">
                                    <button type="button" class="btn btn-danger" name="delete"
                                            data-toggle="modal" data-target="#confirmToDelete"
                                            value="<la:message key="labels.crud_button_delete" />">
                                        <em class="fa fa-trash">

        }

        @Override
        public Map<String, Object> process(Map<String, Object> target, AccessResult<String> accessResult) {
            if (throwException) {
                throw new RuntimeException("Test ingester exception");
            }
            target.put("ingested", "processed");
            return target;
        }
    }

    }

    /**
     * Gets the path by trying multiple locations in order of preference.
     * First tries to get the real path from servlet context, then checks various
     * fallback locations including source and target directories.
     *
     * @param root the root directory (e.g., "WEB-INF/")
     * @param base the base directory under root (e.g., "conf", "classes")
     * @param names the path components to append to the base directory

 * correlated by stream ID.
 *
 *  * [onRequest]
 *  * [onHeaders] (unless canceled)
 *  * [onData] (optional sequence of data frames)
 *
 * As a stream ID is scoped to a single HTTP/2 connection, implementations which target multiple
 * connections should expect repetition of stream IDs.
 *
 * Return true to request cancellation of a pushed stream.  Note that this does not guarantee
 * future frames won't arrive on the stream ID.
 */

 * @author Chris Povirk
 */
@NullUnmarked
final class InterruptionUtil {
  private static final Logger logger = Logger.getLogger(InterruptionUtil.class.getName());

  /** Runnable which will interrupt the target thread repeatedly when run. */
  private static final class Interruptenator implements Runnable {
    private final long everyMillis;
    private final Thread interruptee;
    private volatile boolean shouldStop = false;