public function register_cli() {
		if ( ! defined( 'WP_CLI' ) || ! WP_CLI ) {
			return;
		}
		self::$list[$this->table] = get_called_class();
		if ( self::$initialized ) {
			return;
		}
		\WP_CLI::add_command( "schema", \Hametuha\Pattern\Command::class );
		self::$initialized = false;
	}