isInt(Int(0))
	i = 10
	asInt(*&i)
	isInt(*&i)
	asInt(23)
	asInt(Int(f))
	isInt(Int(f))

	asMap(m)
	isMap(m)
	asMap(nil)
	m = nil
	asMap(make(Map))
	isMap(make(Map))
	asMap(*&m)
	isMap(*&m)
	asMap(Map(nil))
	isMap(Map(nil))
	asMap(Map{})
	isMap(Map{})

	asSlice(slice)
	isSlice(slice)
	asSlice(make(Slice, 5))
	isSlice(make(Slice, 5))
	asSlice([]byte{1, 2, 3})

            boolean isCollection = false;
            boolean isMap = false;
            boolean isProperties = false;
            if (!isArray) {
                try {
                    // assuming Type is available in current ClassLoader
                    isCollection = Collection.class.isAssignableFrom(Class.forName(param.getType()));
                    isMap = Map.class.isAssignableFrom(Class.forName(param.getType()));

func (t *DeclType) IsList() bool {
	return t.KeyType == nil && t.ElemType != nil && t.Fields == nil
}

// IsMap returns whether the declaration is a 'map' type which defines parameterized key and
// element types, but not fields.
func (t *DeclType) IsMap() bool {
	return t.KeyType != nil && t.ElemType != nil && t.Fields == nil
}

	return kindOf(value) == reflect.String
}

// IsPtr reports whether value is a ptr type.
func IsPtr(value any) bool {
	return kindOf(value) == reflect.Ptr
}

// IsMap reports whether value is a map type.
func IsMap(value any) bool {
	return kindOf(value) == reflect.Map
}

// IsMapPtr reports whether v is a map ptr type.
func IsMapPtr(v any) bool {
	t := reflect.TypeOf(v)

	}
	if expT.GetListType() == nil {
		t.Errorf("got %v, wanted CEL list type", expT)
	}
}

func TestTypes_MapType(t *testing.T) {
	mp := NewMapType(StringType, IntType, -1)
	if !mp.IsMap() {
		t.Error("map type not identifiable as map")
	}
	if mp.TypeName() != "map" {
		t.Errorf("got %s, wanted map", mp.TypeName())
	}
	if mp.DefaultValue() == nil {
		t.Error("got nil zero value for map type")
	}

	"href":            contentTypeURL,
	"hreflang":        contentTypePlain,
	"http-equiv":      contentTypeUnsafe,
	"icon":            contentTypeURL,
	"id":              contentTypePlain,
	"ismap":           contentTypePlain,
	"keytype":         contentTypeUnsafe,
	"kind":            contentTypePlain,
	"label":           contentTypePlain,
	"lang":            contentTypePlain,
	"language":        contentTypeUnsafe,

    this?.takeIf { it.isNotEmpty() }
        ?.joinToString(separator = ", ", prefix = "<", postfix = ">", transform = transform)
        ?: ""


private
val ApiTypeUsage.isGroovyNamedArgumentMap
    get() = isMap && (
        typeArguments.all { it.isAny }
            || typeArguments.all { it.isStarProjectionTypeUsage }
            || (typeArguments[0].isString && (typeArguments[1].isStarProjectionTypeUsage || typeArguments[1].isAny))

	}

	src.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
		switch {
		case fd.IsList():
			o.mergeList(dst.Mutable(fd).List(), v.List(), fd)
		case fd.IsMap():
			o.mergeMap(dst.Mutable(fd).Map(), v.Map(), fd.MapValue())
		case fd.Message() != nil:
			mergeFn, exists := o.customMergeFn[fd.Message().FullName()]
			if exists {
				mergeFn(dst.Mutable(fd).Message(), v.Message())

}

// Set sets out with the value at path from node. out is not set if the path doesn't exist or the value is nil.
func Set(val, out any) error {
	// Special case: map out type must be set through map ptr.
	if util.IsMap(val) && util.IsMapPtr(out) {
		reflect.ValueOf(out).Elem().Set(reflect.ValueOf(val))
		return nil
	}
	if util.IsSlice(val) && util.IsSlicePtr(out) {
		reflect.ValueOf(out).Elem().Set(reflect.ValueOf(val))

func mapfn(name string, t *types.Type, isfat bool) ir.Node {
	if !t.IsMap() {
		base.Fatalf("mapfn %v", t)
	}
	if mapfast(t) == mapslow || isfat {
		return typecheck.LookupRuntime(name, t.Key(), t.Elem(), t.Key(), t.Elem())
	}
	return typecheck.LookupRuntime(name, t.Key(), t.Elem(), t.Elem())
}

func mapfndel(name string, t *types.Type) ir.Node {
	if !t.IsMap() {
		base.Fatalf("mapfn %v", t)
	}