*/
  public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
    checkEntryNotNull(k1, v1);
    checkEntryNotNull(k2, v2);
    checkEntryNotNull(k3, v3);
    checkEntryNotNull(k4, v4);
    return new RegularImmutableBiMap<K, V>(new Object[] {k1, v1, k2, v2, k3, v3, k4, v4}, 4);
  }

  /**
   * Returns an immutable map containing the given entries, in order.
   *

   */
  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
    checkEntryNotNull(k1, v1);
    checkEntryNotNull(k2, v2);
    checkEntryNotNull(k3, v3);
    checkEntryNotNull(k4, v4);
    return RegularImmutableMap.create(4, new Object[] {k1, v1, k2, v2, k3, v3, k4, v4});
  }

  /**
   * Returns an immutable map containing the given entries, in order.
   *

        keySetProvider.getOrNull() == ['k1', 'k2', 'k3'] as Set

        when:
        property.putAll(Providers.of(['k4': 'v4']))
        then:
        keySetProvider.present
        keySetProvider.get() == ['k1', 'k2', 'k3', 'k4'] as Set
        keySetProvider.getOrNull() == ['k1', 'k2', 'k3', 'k4'] as Set
    }

    def "implicitly finalizes value on read of keys"() {
        def provider = Mock(ProviderInternal)

   */
  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
      K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
    return fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4));
  }

  /**
   * Returns an immutable sorted map containing the given entries, sorted by the natural ordering of
   * their keys.
   *

   *
   * @throws IllegalArgumentException if duplicate keys are provided
   */
  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
    return RegularImmutableMap.fromEntries(
        entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4));
  }

  /**
   * Returns an immutable map containing the given entries, in order.
   *

//		clause.Associations: {"arg1"},
//		"k1":                {"arg2"},
//		"k2.k3":             {"arg3"},
//		"k4.k5.k6":          {"arg4"},
//	})
//	// preloadMap is
//	map[string]map[string][]interface{}{
//		"k0": {},
//		"k7": {
//			"k8": {},
//		},
//		"k1": {},
//		"k2": {
//			"k3": {"arg3"},
//		},
//		"k4": {
//			"k5.k6": {"arg4"},
//		},
//	}

  public static <K, V> ImmutableListMultimap<K, V> of(
      K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
    ImmutableListMultimap.Builder<K, V> builder = ImmutableListMultimap.builder();
    builder.put(k1, v1);
    builder.put(k2, v2);
    builder.put(k3, v3);
    builder.put(k4, v4);
    return builder.build();
  }

  /** Returns an immutable multimap containing the given entries, in order. */

   */
  public static <K, V> ImmutableSetMultimap<K, V> of(
      K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
    ImmutableSetMultimap.Builder<K, V> builder = ImmutableSetMultimap.builder();
    builder.put(k1, v1);
    builder.put(k2, v2);
    builder.put(k3, v3);
    builder.put(k4, v4);
    return builder.build();
  }

  /**

      - 2
  - description: list of maps
    originalObj:
      listKey:
      - k1: v1
      - k2: null
      - k3: v3
        k4: null
    expectedWithNull: {}
    expectedWithoutNull:
      listKey:
      - k1: v1
      - k2: null
      - k3: v3
        k4: null
  - description: list of different types
    originalObj:
      listKey:
      - k1: v1
      - k2: null
      - v3

00000250  10 77 6f d1 96 86 84 63  fd 27 8e b9 54 da 4b b5  |.wo....c.'..T.K.|
00000260  56 f0 50 8a aa c7 e1 b3  cb 9c 36 9e ec 38 31 39  |V.P.......6..819|
00000270  78 ec ea 34 8a 87 cf 6b  34 fd 5e 81 92 81 61 f1  |x..4...k4.^...a.|
00000280  88 e7 50 62 2e 58 0b d9  b9 ca f3 ed 79 a9 9a 01  |..Pb.X......y...|
00000290  80 9d 7f 84 ae de fb 51  ac 0f 6b b9 76 fd 68 d4  |.......Q..k.v.h.|