public function addSummary(string $summary, string $usergroup = ''): void
    {
        $this->summary->setValue($summary, $usergroup);
    }
public function addSummary(string $summary, string $usergroup = ''): void
    {
        $this->summary->setValue($summary, $usergroup);
    }
public function addSummary ( string $ summary , string $ usergroup = '' ) : void { $ this -> summary -> setValue ( $ summary , $ usergroup ) ; }
Shortcut to easily add the summary of the item.

@param string $summary The summary of the item.
@param string $usergroup The usergroup of the summary.
Shortcut to easily add the summary of the item .