public static string GetUserStoryYaml(UserStory userStory) { var yamlProperties = userStory.ToYamlProperties(); var utcIsoConverter = new DateTimeConverter(kind: DateTimeKind.Utc, formats: UtcIsoFormatString); var serializer = new SerializerBuilder() .WithTypeConverter(utcIsoConverter) .Build(); string yaml = serializer.Serialize(yamlProperties); string final = $"{YamlStartToken}{yaml.Trim() + Environment.NewLine}{YamlEndToken}{Environment.NewLine}"; return(final.NormalizeYamlLineEndings()); }