AbstractEnum::getInstance( string $value, string $name ): static

209    private static function getInstance(string $value, string $name): self210    {211        $className = static::class;212        if (!isset(self::$instances[$className])) {213            self::$instances[$className] = [];214        }215        if (!isset(self::$instances[$className][$name])) {216            $instance = new $className($value, $name);217            self::$instances[$className][$name] = $instance;218        }219        /** @var static */220        return self::$instances[$className][$name];221    }