code: public static function findAllUsingMixin($mixin): array
      {
          if ($mixin instanceof Mixin) {
              $key = $mixin->getId()->getCurieMajor();
          } else {
              $key = $mixin;
          }
  
          if (!isset(self::$resolvedMixins[$key])) {
              $schemas = [];
              foreach ((self::$mixins[$key] ?? []) as $id) {
                  $schemas[] = self::$classes[$id]::schema();
              }
              self::$resolvedMixins[$key] = $schemas;
          }
  
          if (empty(self::$resolvedMixins[$key])) {
              throw new NoMessageForMixin($mixin);
          }
  
          return self::$resolvedMixins[$key];
      }
docs: Returns an array of Schemas using the provided mixin.
  
  @param Mixin|string $mixin Mixin or curie major
  
  @return Schema[]
  
  @throws NoMessageForMixin