public void ToString_contains_Id()
        {
            var sut = new MediumModel {
                Id = "qwitter"
            };

            sut.ToString().Should().Contain("qwitter");
        }
        public void ToString_contains_Name()
        {
            var sut = new MediumModel {
                Name = "Q Witter"
            };

            sut.ToString().Should().Contain("Q Witter");
        }