Unique-Token
Create unique tokens.
Example
use Unique;
let x = new;
let y = new;
// different tokens are unequal
assert_ne!;
// clones are equal
assert_eq!;
assert_eq!;
Create unique tokens.
use Unique;
let x = new;
let y = new;
// different tokens are unequal
assert_ne!;
// clones are equal
assert_eq!;
assert_eq!;