namespace ArgsUniform { public class ExampleUser { public class Args { [Uniform("aaa", "a", "AAA", false, "Sets the AAA!")] public string Aaa { get; set; } = string.Empty; [Uniform("bbb", "b", "BBB", true, "Sets that BBB")] public string Bbb { get; set; } = string.Empty; } public class DefaultsProvider { public string Aaa { get { return "non-static operation"; } } } public void Example() { // env var: "AAA=BBB" var args = "--ccc=ddd"; var uniform = new ArgsUniform(new DefaultsProvider(), args); var aaa = uniform.Parse(); } } }