code: public function groupUncollapse()
      {
          if (!$this->cfg['collect']) {
              return;
          }
          $args = \func_get_args();
          $meta = $this->internal->getMetaVals(
              $args,
              array('channel' => $this->cfg['channel'])
          );
          $curDepth = 0;
          foreach ($this->rootInstance->groupStackRef as $group) {
              $curDepth += (int) $group['collect'];
          }
          $entryKeys = \array_keys($this->internal->getCurrentGroups($this->rootInstance->logRef, $curDepth));
          foreach ($entryKeys as $key) {
              $this->rootInstance->logRef[$key][0] = 'group';
          }
          /*
              Publish the debug.log event (regardless of cfg.collect)
              don't actually log
          */
          $this->internal->publishBubbleEvent(
              'debug.log',
              $this,
              array(
                  'method' => __FUNCTION__,
                  'args' => array(),
                  'meta' => $meta,
              )
          );
      }
docs: Set ancestor groups to uncollapsed
  
  This will only occur if `cfg['collect']` is currently true
  
  @return void