*
   * @throws NullPointerException if the last element is null; if this is a possibility, use {@link
   *     Iterables#getLast} instead.
   */
  @SuppressWarnings("nullness") // Unsafe, but we can't do much about it now.
  public final Optional<@NonNull E> last() {
    // Iterables#getLast was inlined here so we don't have to throw/catch a NSEE

    // TODO(kevinb): Support a concurrently modified collection?

	public final fun enqueue (Lmockwebserver3/MockResponse;)V
	public final fun getBodyLimit ()J
	public final fun getDispatcher ()Lmockwebserver3/Dispatcher;
	public final fun getHostName ()Ljava/lang/String;
	public final fun getPort ()I
	public final fun getProtocolNegotiationEnabled ()Z
	public final fun getProtocols ()Ljava/util/List;
	public final fun getProxyAddress ()Ljava/net/Proxy;
	public final fun getRequestCount ()I

   * @return the last element of {@code iterator}
   * @since 3.0
   */
  @ParametricNullness
  public static <T extends @Nullable Object> T getLast(
      Iterator<? extends T> iterator, @ParametricNullness T defaultValue) {
    return iterator.hasNext() ? getLast(iterator) : defaultValue;
  }

  /**
   * Calls {@code next()} on {@code iterator}, either {@code numberToAdvance} times or until {@code

    @Override
    public E getFirst() {
      synchronized (mutex) {
        return delegate().getFirst();
      }
    }

    @Override
    public E getLast() {
      synchronized (mutex) {
        return delegate().getLast();
      }
    }

    @Override
    public @Nullable E peekFirst() {
      synchronized (mutex) {
        return delegate().peekFirst();
      }
    }

    @Override
    public E getFirst() {
      synchronized (mutex) {
        return delegate().getFirst();
      }
    }

    @Override
    public E getLast() {
      synchronized (mutex) {
        return delegate().getLast();
      }
    }

    @Override
    public @Nullable E peekFirst() {
      synchronized (mutex) {
        return delegate().peekFirst();
      }
    }

Wenn Sie `pip` verwenden, um Pakete zu installieren (es wird standardmäßig mit Python geliefert), sollten Sie es auf die neueste Version **aktualisieren**.

Viele exotische Fehler beim Installieren eines Pakets werden einfach dadurch gelöst, dass zuerst `pip` aktualisiert wird.

/// tip | Tipp

Normalerweise würden Sie dies **einmal** tun, unmittelbar nachdem Sie die virtuelle Umgebung erstellt haben.

///

    private final int size;

    ComplementRanges(ImmutableList<Range<C>> ranges) {
      this.ranges = ranges;
      this.positiveBoundedBelow = ranges.get(0).hasLowerBound();
      this.positiveBoundedAbove = Iterables.getLast(ranges).hasUpperBound();

      int size = ranges.size() - 1;
      if (positiveBoundedBelow) {
        size++;
      }
      if (positiveBoundedAbove) {
        size++;
      }

      this.flags = flags;
    }

    public Inet4Address getServer() {
      return server;
    }

    public Inet4Address getClient() {
      return client;
    }

    public int getPort() {
      return port;
    }

    public int getFlags() {
      return flags;
    }
  }

  /**
   * Evaluates whether the argument is a Teredo address.
   *

      this.flags = flags;
    }

    public Inet4Address getServer() {
      return server;
    }

    public Inet4Address getClient() {
      return client;
    }

    public int getPort() {
      return port;
    }

    public int getFlags() {
      return flags;
    }
  }

  /**
   * Evaluates whether the argument is a Teredo address.
   *

                nt.performFor(fa.getExists(), "exists", fa::setExists);
                nt.performFor(fa.getMissing(), "missing", fa::setMissing);
            });
            a.map(Activation::getOs).ifPresent(oa -> {
                Interpolation nt = new Interpolation(oa, interpolator::interpolate);
                nt.performFor(oa.getArch(), "arch", oa::setArch);