And then another background task generated at the *path operation function* will write a message using the `email` path parameter.

## Technical Details { #technical-details }

The class `BackgroundTasks` comes directly from <a href="https://www.starlette.dev/background/" class="external-link" target="_blank">`starlette.background`</a>.

  }

  /*
   * TODO(benyu): Once behavior is the same for all Java (and Android) versions we support, delete
   * this. It is possible that one or both of JAVA6 and JAVA7 have become unnecessary already.
   */
  enum JavaVersion {
    JAVA6 {
      @Override
      GenericArrayType newArrayType(Type componentType) {
        return new GenericArrayTypeImpl(componentType);
      }

esperas a que tu crush termine la historia (termine el trabajo ⏯ / tarea actual que se está procesando 🤓), sonríes amablemente y dices que vas por las hamburguesas ⏸.

Luego vas al mostrador 🔀, a la tarea inicial que ahora está terminada ⏯, recoges las hamburguesas, das las gracias y las llevas a la mesa. Eso termina ese paso / tarea de interacción con el mostrador ⏹. Eso a su vez, crea una nueva tarea, de "comer hamburguesas" 🔀 ⏯, pero la anterior de "obtener hamburguesas" ha terminado ⏹....

        return first.length() - second.length();
      } else {
        return first.compareTo(second);
      }
    }
  }

  /** Decreasing integer values. A {@code null} comes before any non-null value. */
  private static final Comparator<@Nullable Integer> DECREASING_INT_COMPARATOR =
      Ordering.<Integer>natural().reverse().<Integer>nullsFirst();

  private SetMultimap<String, Integer> create() {

        just a feature that seems like a sensible addition to Guava?


        Before new features get added to Guava, we really want to be sure that it's for a use case
        that actually comes up in the real world. We want to hear the real-world use case so the
        community can discuss and debate whether this feature is actually the *best* way to address

@J2ktIncompatible
@GwtIncompatible
public abstract class ByteSource {

  /** Constructor for use by subclasses. */
  protected ByteSource() {}

  /**
   * Returns a {@link CharSource} view of this byte source that decodes bytes read from this source
   * as characters using the given {@link Charset}.
   *
   * <p>If {@link CharSource#asByteSource} is called on the returned source with the same charset,

            }
            return null;
        }
        return permission;
    }

    /**
     * Decodes a search role format string back to a permission string.
     * Reverses the encoding process to restore original permission format.
     *
     * @param value the encoded permission string to decode

  /**
   * Returns the identity function.
   *
   * <p><b>Discouraged:</b> Prefer using a lambda like {@code v -> v}, which is shorter and often
   * more readable.
   */
  // implementation is "fully variant"; E has become a "pass-through" type
  @SuppressWarnings("unchecked")
  public static <E extends @Nullable Object> Function<E, E> identity() {
    return (Function<E, E>) IdentityFunction.INSTANCE;
  }

  // enum singleton pattern

/// note | Technical Details

You could also use `from starlette.websockets import WebSocket`.

**FastAPI** provides the same `WebSocket` directly just as a convenience for you, the developer. But it comes directly from Starlette.

///

## Await for messages and send messages { #await-for-messages-and-send-messages }

In your WebSocket route you can `await` for messages and send messages.

  private static <N, V> GraphConnections<N, V> connectionsOf(ValueGraph<N, V> graph, N node) {
    Function<N, V> successorNodeToValueFn =
        (N successorNode) ->
            // requireNonNull is safe because the endpoint pair comes from the graph.
            requireNonNull(graph.edgeValueOrDefault(node, successorNode, null));
    return graph.isDirected()
        ? DirectedGraphConnections.ofImmutable(