public void ShouldContainKey_WhenTrue_ShouldNotThrow()
 {
     var dictionary = new Dictionary<string, string>();
     dictionary.Add("key", "value");
     dictionary.ShouldContainKey("key");
     dictionary.ShouldNotContainKey("rob");
 }
 public void ShouldContainKey()
 {
     DocExampleWriter.Document(() =>
     {
         var websters = new Dictionary<string, string>();
         websters.Add("Embiggen", "To empower or embolden.");
         websters.ShouldContainKey("Cromulent");
     }, _testOutputHelper);
 }