public void SerializeAdvanceContactAsJsonWorks(OpenApiSpecVersion version)
        {
            // Arrange
            var expected =
                @"{
  ""name"": ""API Support"",
  ""url"": ""http://www.example.com/support"",
  ""email"": ""*****@*****.**"",
  ""x-internal-id"": 42
}";

            // Act
            var actual = AdvanceContact.SerializeAsJson(version);

            // Assert
            actual   = actual.MakeLineBreaksEnvironmentNeutral();
            expected = expected.MakeLineBreaksEnvironmentNeutral();
            actual.Should().Be(expected);
        }