public function __construct(ContextStorageScopeInterface $scope) { $this->fiberId = self::currentFiberId(); $this->createdAt = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS); if (!self::$shutdownHandlerInitialized) { self::$shutdownHandlerInitialized = true; register_shutdown_function('register_shutdown_function', static fn() => self::$finalShutdownPhase = true); } }