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<?php declare(strict_types=1);
namespace Stratadox\CardGame;
abstract class Identifier
{
private $id;
private function __construct(string $id)
$this->id = $id;
}
/** @return static */
public static function from($id): self
return new static((string) $id);
public function is(self $that): bool
return (string) $this === (string) $that;
public function id(): string
return $this->id;
public function __toString(): string
Stratadox /
CardGame
