private static void checkChildCollectionData()
        {
            Console.WriteLine("Child Collection Format");
            ChildCollection test = new ChildCollection();

            test.id            = 1;
            test.name          = "test";
            test.decimal_value = 5.3M;

            test.collections = new List <ChildCollection>()
            {
                test.Clone() as ChildCollection
            };

            var creator = new Creator <ChildCollection>();

            var kvps = new List <KeyValuePair <string, object> >();

            creator.addKVP(kvps, test);

            foreach (var kvp in kvps)
            {
                Console.WriteLine($"{kvp.Key}  - {kvp.Value}");
            }
        }