* the method returns.
     *
     * @param output The writer to serialize the toolchains to, must not be {@code null}.
     * @param options The options to use for serialization, may be {@code null} to use the default values.
     * @param toolchains The toolchains to serialize, must not be {@code null}.
     * @throws IOException If the toolchains could not be serialized.
     */

        start = System.currentTimeMillis();
        SerializeUtil.serialize(hmap);
        System.out.println("HashMap serialize:" + (System.currentTimeMillis() - start));

        start = System.currentTimeMillis();
        SerializeUtil.serialize(amap);
        System.out.println("ArrayMap serialize:" + (System.currentTimeMillis() - start));
    }

    private static class MyKey {

try:
    import orjson
except ImportError:  # pragma: nocover
    orjson = None  # type: ignore


class UJSONResponse(JSONResponse):
    """
    JSON response using the high-performance ujson library to serialize data to JSON.

    Read more about it in the
    [FastAPI docs for Custom Response - HTML, Stream, File, others](https://fastapi.tiangolo.com/advanced/custom-response/).
    """

  public void testSerialization() {
    assertThat(reserialize(ImmutableIntArray.of())).isSameInstanceAs(ImmutableIntArray.of());
    assertThat(reserialize(ImmutableIntArray.of(0, 1).subArray(1, 1)))
        .isSameInstanceAs(ImmutableIntArray.of());

    ImmutableIntArray iia = ImmutableIntArray.of(0, 1, 3, 6).subArray(1, 3);
    ImmutableIntArray iia2 = reserialize(iia);
    assertThat(iia2).isEqualTo(iia);

  public void testSerialization() {
    assertThat(reserialize(ImmutableDoubleArray.of())).isSameInstanceAs(ImmutableDoubleArray.of());
    assertThat(reserialize(ImmutableDoubleArray.of(0, 1).subArray(1, 1)))
        .isSameInstanceAs(ImmutableDoubleArray.of());

    ImmutableDoubleArray iia = ImmutableDoubleArray.of(0, 1, 3, 6).subArray(1, 3);
    ImmutableDoubleArray iia2 = reserialize(iia);
    assertThat(iia2).isEqualTo(iia);

    Predicate<Class<?>> predicate = Predicates.subtypeOf(Integer.class);
    Predicate<Class<?>> reserialized = SerializableTester.reserializeAndAssert(predicate);

    assertEvalsLike(predicate, reserialized, Integer.class);
    assertEvalsLike(predicate, reserialized, Float.class);
    assertEvalsLike(predicate, reserialized, null);
  }

  /*
   * Tests for Predicates.isNull()
   */

    Helpers.testComparator(comparator, ordered);
    assertThat(SerializableTester.reserialize(comparator)).isSameInstanceAs(comparator);

    // The Java implementation.
    Comparator<byte[]> javaImpl = UnsignedBytes.lexicographicalComparatorJavaImpl();
    Helpers.testComparator(javaImpl, ordered);
    assertThat(SerializableTester.reserialize(javaImpl)).isSameInstanceAs(javaImpl);
  }

  public void testReserialize() {
    // For a bare Collection, the most we can guarantee is that the elements are preserved.
    assertEqualIgnoringOrder(actualContents(), SerializableTester.reserialize(actualContents()));
  }

    assertEquals(HashMultiset.create(multimap.values()), HashMultiset.create(valuesCopy));
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testEmptySerialization() {
    Multimap<String, Integer> multimap = ImmutableSetMultimap.of();
    assertSame(multimap, SerializableTester.reserialize(multimap));
  }

  @J2ktIncompatible

    }

    /**
     * Serialize the inbound Model instance to a StringWriter, perform the regex replacement to resolve
     * POM expressions, then re-parse into the resolved Model instance.
     * <p>
     * <b>NOTE:</b> This will result in a different instance of Model being returned!!!
     *
     * @param model The inbound Model instance, to serialize and reference for expression resolution