src/Debug/Output.php
public function onOutput(Event $event)
    {
        if (!$event['isTarget']) {
            /*
                All channels share the same data.
                We only need to do this via the channel that called output
            */
            return;
        }
        $this->data = $this->debug->getData();
        $this->closeOpenGroups();
        foreach ($this->data['logSummary'] as &$log) {
            $this->removeHideIfEmptyGroups($log);
            $this->uncollapseErrors($log);
        }
        $this->removeHideIfEmptyGroups($this->data['log']);
        $this->uncollapseErrors($this->data['log']);
        $this->debug->setData($this->data);
    }
public function onOutput(Event $event)
    {
        if (!$event['isTarget']) {
            /*
                All channels share the same data.
                We only need to do this via the channel that called output
            */
            return;
        }
        $this->data = $this->debug->getData();
        $this->closeOpenGroups();
        foreach ($this->data['logSummary'] as &$log) {
            $this->removeHideIfEmptyGroups($log);
            $this->uncollapseErrors($log);
        }
        $this->removeHideIfEmptyGroups($this->data['log']);
        $this->uncollapseErrors($this->data['log']);
        $this->debug->setData($this->data);
    }
debug.output subscriber

@param Event $event debug.output event object

@return void