if mp.ElemType.TypeName() != "int" {
		t.Errorf("got %s, wanted elem type of int", mp.ElemType.TypeName())
	}
	expT, err := mp.ExprType()
	if err != nil {
		t.Errorf("fail to get cel type: %s", err)
	}
	if expT.GetMapType() == nil {
		t.Errorf("got %v, wanted CEL map type", expT)
	}
}

func testValue(t *testing.T, id int64, val interface{}) *DynValue {
	t.Helper()
	dv, err := NewDynValue(id, val)
	if err != nil {

	}
	flagsFieldType, found := rt.FindFieldType("CustomObject.nested", "flags")
	if !found {
		t.Fatal("got field not found for 'CustomObject.nested.flags', wanted found")
	}
	if flagsFieldType.Type.GetMapType() == nil {
		t.Errorf("got field type %v, wanted map", flagsFieldType.Type)
	}
	flagFieldType, found := rt.FindFieldType("CustomObject.nested.flags", "my_flag")
	if !found {