Blackfire\Player\Extension\BlackfireStepTrait::isBlackfireEnabled PHP Method

    public function isBlackfireEnabled()
    {
        if (null !== $this->blackfire) {
            return $this->blackfire;
        }
        // auto-enabled only for the last step
        // or when blackfire configuration is set
        return !$this->getNext() || $this->isConfigured;
    }