OptionLike and ResultLike
Define your own Option-like and Result-like enum types. Do not redefine option and result utilities to your own enums.
Option example
use OptionLike;
// Simple case with single argument name
OptionLike!;
let v = Some;
// every option utilities are possible including unwrap, map, and, or etc.
assert!;
// convertable to option
let opt = v.into_option;
assert!;
// With custom names
OptionLike!;
let v = Value;
assert!;
Result example in same way
use ResultLike;
// simply,
ResultLike!;
// customizing,
ResultLike!;