assertEquals(p1.apply(1.0f), p2.apply(1.0f));
    assertEquals(p1.apply(5.0f), p2.apply(5.0f));
  }

  public void testForPredicate() {
    Function<Object, Boolean> alwaysTrue = Functions.forPredicate(Predicates.alwaysTrue());
    Function<Object, Boolean> alwaysFalse = Functions.forPredicate(Predicates.alwaysFalse());

    assertTrue(alwaysTrue.apply(0));
    assertFalse(alwaysFalse.apply(0));

    assertEquals(p1.apply(1.0f), p2.apply(1.0f));
    assertEquals(p1.apply(5.0f), p2.apply(5.0f));
  }

  public void testForPredicate() {
    Function<Object, Boolean> alwaysTrue = Functions.forPredicate(Predicates.alwaysTrue());
    Function<Object, Boolean> alwaysFalse = Functions.forPredicate(Predicates.alwaysFalse());

    assertTrue(alwaysTrue.apply(0));
    assertFalse(alwaysFalse.apply(0));

    checkNotNull(keyFunction);
    checkNotNull(valueFunction);
    return Collector.of(
        ImmutableMap.Builder<K, V>::new,
        (builder, input) -> builder.put(keyFunction.apply(input), valueFunction.apply(input)),
        ImmutableMap.Builder::combine,
        ImmutableMap.Builder::buildOrThrow);
  }

  static <T extends @Nullable Object, K, V> Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(

    Predicate<String> post = SerializableTester.reserializeAndAssert(pre);
    assertEquals(pre.apply("foo"), post.apply("foo"));
    assertEquals(pre.apply(null), post.apply(null));
  }

  public void testNotNull_apply() {
    Predicate<@Nullable Integer> notNull = Predicates.notNull();
    assertFalse(notNull.apply(null));
    assertTrue(notNull.apply(1));
  }

  public void testNotNull_equality() {
    new EqualsTester()

          @Override
          public Arithmetic apply(Arithmetic arithmetic) {
            return new ForwardingArithmetic(arithmetic);
          }
        });
    tester.testForwarding(
        ParameterTypesDifferent.class,
        new Function<ParameterTypesDifferent, ParameterTypesDifferent>() {
          @Override
          public ParameterTypesDifferent apply(ParameterTypesDifferent delegate) {

        for (final ElevateWord elevateWord : list) {
            suggester.indexer().deleteElevateWord(elevateWord.getSuggestWord(), apply);
        }
        refresh();
    }

    public void deleteElevateWord(final String word, final boolean apply) {
        suggester.indexer().deleteElevateWord(word, apply);
        refresh();
    }

      this.g = checkNotNull(g);
      this.f = checkNotNull(f);
    }

    @Override
    @ParametricNullness
    public C apply(@ParametricNullness A a) {
      return g.apply(f.apply(a));
    }

    @Override
    public boolean equals(@CheckForNull Object obj) {
      if (obj instanceof FunctionComposition) {

      this.settings =
        Settings().apply {
          merge(mockResponse.settings)
        }
    }

    fun code(code: Int) =
      apply {
        this.code = code
      }

    /** Sets the status and returns this. */
    fun status(status: String) =
      apply {
        this.status = status
      }

    /**

    Predicate<String> post = SerializableTester.reserializeAndAssert(pre);
    assertEquals(pre.apply("foo"), post.apply("foo"));
    assertEquals(pre.apply(null), post.apply(null));
  }

  public void testNotNull_apply() {
    Predicate<@Nullable Integer> notNull = Predicates.notNull();
    assertFalse(notNull.apply(null));
    assertTrue(notNull.apply(1));
  }

  public void testNotNull_equality() {
    new EqualsTester()

    }

    fun client(client: OkHttpClient) =
      apply {
        this.client = client
      }

    fun url(url: HttpUrl) =
      apply {
        this.url = url
      }

    fun includeIPv6(includeIPv6: Boolean) =
      apply {
        this.includeIPv6 = includeIPv6
      }

    fun post(post: Boolean) =
      apply {
        this.post = post
      }