src/Scenario/Manager.php
private function removeEventsAboutScenario(ScenarioInterface $scenario)
    {
        $dispatcher = $this->getDispatcher();
        foreach ($scenario->getEventsNamesList() as $eventName) {
            $dispatcher->removeListener($eventName, $scenario);
        }

        return $this;
    }
private function removeEventsAboutScenario(ScenarioInterface $scenario)
    {
        $dispatcher = $this->getDispatcher();
        foreach ($scenario->getEventsNamesList() as $eventName) {
            $dispatcher->removeListener($eventName, $scenario);
        }

        return $this;
    }
@param ScenarioInterface $scenario

@return $this