public static CollectionOfInterfacesSample GetSampleInstance()
        {
            var c1 = new Class1()
            {
                IntInInterface = 1, DoubleInClass1 = 1.0
            };
            var c2 = new Class2()
            {
                IntInInterface = 2, StringInClass2 = "Class2"
            };
            var c3 = new Class3_1()
            {
                DoubleInClass1 = 3.0, IntInInterface = 3, StringInClass3_1 = "Class3_1"
            };

            List <ISample> lstOfSamples = new List <ISample>();

            lstOfSamples.Add(c1);
            lstOfSamples.Add(c2);
            lstOfSamples.Add(c3);

            Dictionary <ISample, int> dicSample2Int = new Dictionary <ISample, int>();

            dicSample2Int.Add(c1, 1);
            dicSample2Int.Add(c2, 2);
            dicSample2Int.Add(c3, 3);

            Dictionary <int, ISample> dicInt2Sample = new Dictionary <int, ISample>();

            dicInt2Sample.Add(1, c1);
            dicInt2Sample.Add(2, c2);
            dicInt2Sample.Add(3, c3);


            return(new CollectionOfInterfacesSample()
            {
                SingleRef = new Class2()
                {
                    IntInInterface = 22, StringInClass2 = "SingleRef"
                },
                ListOfSamples = lstOfSamples,
                DictSample2Int = dicSample2Int,
                DictInt2Sample = dicInt2Sample
            });
        }
        public static CollectionOfInterfacesSample GetSampleInstance()
        {
            var c1 = new Class1() { IntInInterface = 1, DoubleInClass1 = 1.0 };
            var c2 = new Class2() { IntInInterface = 2, StringInClass2 = "Class2" };
            var c3 = new Class3_1() { DoubleInClass1 = 3.0, IntInInterface = 3, StringInClass3_1 = "Class3_1" };

            List<ISample> lstOfSamples = new List<ISample>();
            lstOfSamples.Add(c1);
            lstOfSamples.Add(c2);
            lstOfSamples.Add(c3);

            Dictionary<ISample, int> dicSample2Int = new Dictionary<ISample, int>();
            dicSample2Int.Add(c1, 1);
            dicSample2Int.Add(c2, 2);
            dicSample2Int.Add(c3, 3);

            Dictionary<int, ISample> dicInt2Sample = new Dictionary<int, ISample>();
            dicInt2Sample.Add(1, c1);
            dicInt2Sample.Add(2, c2);
            dicInt2Sample.Add(3, c3);

            return new CollectionOfInterfacesSample()
            {
                SingleRef = new Class2() { IntInInterface = 22, StringInClass2 = "SingleRef" },
                ListOfSamples = lstOfSamples,
                DictSample2Int = dicSample2Int,
                DictInt2Sample = dicInt2Sample
            };
        }