concrete/src/Permission/Key/Key.php
public function getPackageHandle()
    {
        $pkgID = $this->getPackageID();

        return $pkgID ? PackageList::getHandle($this->pkgID) : null;
    }
public function getPackageHandle()
    {
        $pkgID = $this->getPackageID();

        return $pkgID ? PackageList::getHandle($this->pkgID) : null;
    }
public function getPackageHandle ( ) { $ pkgID = $ this -> getPackageID ( ) ; return $ pkgID ? PackageList :: getHandle ( $ this -> pkgID ) : null ; }
Get the handle of the package that defines this permission key.

@return string|null
Get the handle of the package that defines this permission key .