return LexicographicalComparator.INSTANCE;
  }

  enum LexicographicalComparator implements Comparator<int[]> {
    INSTANCE;

    @Override
    // A call to bare "min" or "max" would resolve to our varargs method, not to any static import.
    @SuppressWarnings("StaticImportPreferred")
    public int compare(int[] left, int[] right) {
      int minLength = Math.min(left.length, right.length);

    return LexicographicalComparator.INSTANCE;
  }

  enum LexicographicalComparator implements Comparator<int[]> {
    INSTANCE;

    @Override
    // A call to bare "min" or "max" would resolve to our varargs method, not to any static import.
    @SuppressWarnings("StaticImportPreferred")
    public int compare(int[] left, int[] right) {
      int minLength = Math.min(left.length, right.length);

        Predicates.or(Collections.<Predicate<@Nullable Integer>>emptyList());
    Predicate<@Nullable Integer> troo = Predicates.or(Collections.singletonList(TRUE));
    /*
     * newLinkedList() takes varargs. TRUE and FALSE are both instances of
     * Predicate<Integer>, so the call is safe.
     */
    Predicate<@Nullable Integer> trueAndFalse = Predicates.or(Arrays.asList(TRUE, FALSE));

    assertSame(a, numberOrdering.min(ints));
  }

  public void testVarargsMinAndMax() {
    // try the min and max values in all positions, since some values are proper
    // parameters and others are from the varargs array
    assertEquals(9, (int) numberOrdering.max(9, 3, 0, 5, 8));
    assertEquals(9, (int) numberOrdering.max(5, 9, 0, 3, 8));
    assertEquals(9, (int) numberOrdering.max(5, 3, 9, 0, 8));

    assertSame(a, numberOrdering.min(ints));
  }

  public void testVarargsMinAndMax() {
    // try the min and max values in all positions, since some values are proper
    // parameters and others are from the varargs array
    assertEquals(9, (int) numberOrdering.max(9, 3, 0, 5, 8));
    assertEquals(9, (int) numberOrdering.max(5, 9, 0, 3, 8));
    assertEquals(9, (int) numberOrdering.max(5, 3, 9, 0, 8));

## Documentando o callback

O código real do callback dependerá muito do seu próprio aplicativo de API.

E provavelmente variará muito de um aplicativo para o outro.

Poderia ser apenas uma ou duas linhas de código, como:

```Python
callback_url = "https://example.com/api/v1/invoices/events/"

Africa/Banjul Africa/Bissau Africa/Blantyre Africa/Brazzaville Africa/Bujumbura Africa/Cairo Africa/Casablanca Africa/Ceuta Africa/Conakry Africa/Dakar Africa/Dar_es_Salaam Africa/Djibouti Africa/Douala Africa/El_Aaiun Africa/Freetown Africa/Gaborone Africa/Harare Africa/Johannesburg Africa/Juba Africa/Kampala Africa/Khartoum Africa/Kigali Africa/Kinshasa Africa/Lagos Africa/Libreville Africa/Lome Africa/Luanda Africa/Lubumbashi Africa/Lusaka Africa/Malabo Africa/Maputo Africa/Maseru Africa/Mbabane Africa/Mogadishu...

    List<String> list = ImmutableList.of("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k");
    assertEquals(Lists.newArrayList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k"), list);
  }

  // Varargs versions

  public void testCreation_twelveElements() {
    List<String> list =
        ImmutableList.of("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l");
    assertEquals(

    assertThat(Doubles.toArray(longs)).isEqualTo(array);
    assertThat(Doubles.toArray(doubles)).isEqualTo(array);
  }

  @J2ktIncompatible // b/239034072: Kotlin varargs copy parameter arrays.
  public void testAsList_isAView() {
    double[] array = {(double) 0, (double) 1};
    List<Double> list = Doubles.asList(array);
    list.set(0, (double) 2);

118BF         ; mapped                 ; 118DF         # 7.0  WARANG CITI CAPITAL LETTER VIYO
118C0..118E9  ; valid                                  # 7.0  WARANG CITI SMALL LETTER NGAA..WARANG CITI DIGIT NINE
118EA..118F2  ; valid                  ;      ; NV8    # 7.0  WARANG CITI NUMBER TEN..WARANG CITI NUMBER NINETY
118F3..118FE  ; disallowed                             # NA   <reserved-118F3>..<reserved-118FE>