dst.Add(t)
		return true
	})
	return
}

type MapSet[T any] struct {
	m a.Map[T, struct{}]
}

func HashSet[T comparable](capacity int) MapSet[T] {
	return FromMap[T](a.NewHashMap[T, struct{}](capacity))
}

func FromMap[T any](m a.Map[T, struct{}]) MapSet[T] {
	return MapSet[T]{
		m: m,
	}
}

func (s MapSet[T]) Add(t T) {
	s.m.Put(t, struct{}{})
}

func (s MapSet[T]) Len() int {

        List<ModuleIdExclude> moduleIdExcludes = UnionOf.MODULEID.fromMap(byType);
        List<ModuleIdSetExclude> moduleIdSetsExcludes = UnionOf.MODULEID_SET.fromMap(byType);
        List<GroupExclude> groupExcludes = UnionOf.GROUP.fromMap(byType);
        List<GroupSetExclude> groupSetExcludes = UnionOf.GROUP_SET.fromMap(byType);
        List<ModuleExclude> moduleExcludes = UnionOf.MODULE.fromMap(byType);

    protected SortedMap<K, V1> fromMap() {
      return (SortedMap<K, V1>) fromMap;
    }

    TransformedEntriesSortedMap(
        SortedMap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
      super(fromMap, transformer);
    }

    @Override
    @CheckForNull
    public Comparator<? super K> comparator() {
      return fromMap().comparator();
    }

    protected SortedMap<K, V1> fromMap() {
      return (SortedMap<K, V1>) fromMap;
    }

    TransformedEntriesSortedMap(
        SortedMap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
      super(fromMap, transformer);
    }

    @Override
    @CheckForNull
    public Comparator<? super K> comparator() {
      return fromMap().comparator();
    }

    @Override

        return Transformation.fromMap("Transform step 1", artifactWithDependencies)
    }

    Transformation singleStep(String artifact, String... dependencies) {
        return singleStep((artifact): (dependencies as List))
    }

    Transformation singleStep(Map<String, List<String>> artifactWithDependencies) {
        Transformation.fromMap("Single step transform", artifactWithDependencies)
    }

          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
      Multimap<K, V2> transformEntries(
          Multimap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
    return new TransformedEntriesMultimap<>(fromMap, transformer);
  }

  /**
   * Returns a view of a {@code ListMultimap} whose values are derived from the original multimap's

          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
      Multimap<K, V2> transformEntries(
          Multimap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
    return new TransformedEntriesMultimap<>(fromMap, transformer);
  }

  /**
   * Returns a view of a {@code ListMultimap} whose values are derived from the original multimap's

    new EqualsTester()
        .addEqualityGroup(
            function, Functions.forMap(map, 42), SerializableTester.reserialize(function))
        .addEqualityGroup(Functions.forMap(map))
        .addEqualityGroup(Functions.forMap(map, null))
        .addEqualityGroup(Functions.forMap(map, 43))
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester

			// TODO: should we not consider "va" for the language tag?
			var exact1, exact2 bool
			tag.language, exact1 = FromTag(t)
			t.RegionID = r
			tag.locale, exact2 = FromTag(t)
			if !exact1 || !exact2 {
				tag.full = tFull
			}
			return tag
		}
	}
	lang, ok := FromTag(t)
	tag.language = lang
	tag.locale = lang
	if !ok {
		tag.full = t
	}
	return tag
}

      Map<K, V> map) {
    return new FunctionForMapNoDefault<>(map);
  }

  /**
   * Returns a function which performs a map lookup with a default value. The function created by
   * this method returns {@code defaultValue} for all inputs that do not belong to the map's key
   * set. See also {@link #forMap(Map)}, which throws an exception in this case.
   *