private function fetchParametersForHandlerFactoryMethod(string $handlerClassName): array
    {
        if (! isset($this->tagHandlerParameterCache[$handlerClassName])) {
            $methodReflection = new \ReflectionMethod($handlerClassName, 'create');
            $this->tagHandlerParameterCache[$handlerClassName] = $methodReflection->getParameters();
        }

        return $this->tagHandlerParameterCache[$handlerClassName];
    }