(O: Order<A>)
| 2101 | * |
| 2102 | * Option.some(2).pipe(Option.contains(2)) // => true |
| 2103 | * Option.some(1).pipe(Option.contains(2)) // => false |
| 2104 | * Option.none().pipe(Option.contains(2)) // => false |
| 2105 | * ``` |
| 2106 | * |
| 2107 | * @see {@link containsWith} for custom equality |