public void GetCoreModelTypeUrls()
{
var urls = source.GetCoreModelUrls();
Assert.IsTrue(urls.All(s => s.StartsWith(XmlNs.FHIR)));
Assert.IsTrue(urls.Any(s => s.EndsWith("/Patient")));
Assert.IsTrue(urls.Any(s => s.EndsWith("/boolean")));
Assert.IsTrue(urls.Any(s => s.EndsWith("/Coding")));
Assert.IsFalse(urls.Any(s => s.EndsWith("/data-absent-reason")));
}