private function createOperatorDefinition()
    {
        $id = $this->getServiceId('operator');
        if (!$this->container->has($id)) {
            $definition = new Definition($this->getServiceClass('operator'));
            $definition->setArguments([
                new Reference($this->getManagerServiceId()),
                new Reference($this->getEventDispatcherServiceId()),
                new Reference($this->getServiceId('configuration')),
                $this->container->getParameter('kernel.debug')
            ]);
            $this->container->setDefinition($id, $definition);
        }
    }