* OAuth2 Scopes: Scopes de OAuth2 (do not translate to "Alcances de OAuth2")
* on the fly: sobre la marcha (do not translate to "al vuelo")
* terminal: terminal (femenine, as in "la terminal")
* terminals: terminales (plural femenine, as in "las terminales")
* lifespan: lifespan (do not translate to "vida útil" or "tiempo de vida")
* unload: quitar de memoria (do not translate to "descargar")

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

**Nota**: Asegúrate de poner `"fastapi[standard]"` entre comillas para asegurar que funcione en todas las terminales.

## Ejemplo

### Créalo

* Crea un archivo `main.py` con:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")

     * State#FAILED fail}/{@linkplain State#TERMINATED terminate} before all other services have
     * started {@linkplain State#RUNNING running} then this method will not be called.
     */
    public void healthy() {}

    /**
     * Called when the all of the component services have reached a terminal state, either
     * {@linkplain State#TERMINATED terminated} or {@linkplain State#FAILED failed}.
     */

     */
    public void stopping(State from) {}

    /**
     * Called when the service transitions to the {@linkplain State#TERMINATED TERMINATED} state.
     * The {@linkplain State#TERMINATED TERMINATED} state is a terminal state in the transition
     * diagram. Therefore, if this method is called, no other methods will be called on the {@link
     * Listener}.
     *

     */
    public void stopping(State from) {}

    /**
     * Called when the service transitions to the {@linkplain State#TERMINATED TERMINATED} state.
     * The {@linkplain State#TERMINATED TERMINATED} state is a terminal state in the transition
     * diagram. Therefore, if this method is called, no other methods will be called on the {@link
     * Listener}.
     *

   * executor will not be {@linkplain ScheduledExecutorService#shutdown shutdown} when this service
   * {@linkplain Service.State#TERMINATED terminates} or {@linkplain Service.State#TERMINATED
   * fails}. Subclasses may override this method to supply a custom {@link ScheduledExecutorService}
   * instance. This method is guaranteed to only be called once.
   *

   * executor will not be {@linkplain ScheduledExecutorService#shutdown shutdown} when this service
   * {@linkplain Service.State#TERMINATED terminates} or {@linkplain Service.State#TERMINATED
   * fails}. Subclasses may override this method to supply a custom {@link ScheduledExecutorService}
   * instance. This method is guaranteed to only be called once.
   *

    return new ListenerCallQueue.Event<Listener>() {
      @Override
      public void call(Listener listener) {
        listener.terminated(from);
      }

      @Override
      public String toString() {
        return "terminated({from = " + from + "})";
      }
    };
  }

  private static ListenerCallQueue.Event<Listener> stoppingEvent(State from) {

         */
        public void setFinished(final boolean finished) {
            this.finished = finished;
        }

        /**
         * Checks if the process has been terminated due to timeout.
         * @return True if the process was terminated, false otherwise.
         */
        public boolean isTeminated() {
            return teminated;
        }
    }

    /**

    return new ListenerCallQueue.Event<Listener>() {
      @Override
      public void call(Listener listener) {
        listener.terminated(from);
      }

      @Override
      public String toString() {
        return "terminated({from = " + from + "})";
      }
    };
  }

  private static ListenerCallQueue.Event<Listener> stoppingEvent(State from) {