[E017] Error: cannot declare magic method `EnumWithSet::__set` in an enum
   ,-[code.php:4:21]
   |
 3 | enum EnumWithSet {
   *      ^^^^^^^^^^^  
   *                    
 4 |     public function __set($k, $v) {}
   *                     ^^|^^  
   *                       `---- try removing this magic method
---'

