[E013] Error: promoted property `foo::$e` cannot declare variadic
   ,-[code.php:5:25]
   |
 3 | class foo {
   *       ^^^  
   *             
   * 
 5 |         public readonly ...$e,
   *         ^^^^^^          ^|^^^  
   *                          |      
   *                          |     
   *                          |      
   *                          |     
   *                          `----- try removing this variadic declaration
---'