concrete/src/Page/Page.php
public function getPackageHandle()
    {
        if (!isset($this->pkgHandle)) {
            $this->pkgHandle = PackageList::getHandle($this->pkgID);
        }

        return $this->pkgHandle;
    }
public function getPackageHandle()
    {
        if (!isset($this->pkgHandle)) {
            $this->pkgHandle = PackageList::getHandle($this->pkgID);
        }

        return $this->pkgHandle;
    }
public function getPackageHandle ( ) { if ( ! isset ( $ this -> pkgHandle ) ) { $ this -> pkgHandle = PackageList :: getHandle ( $ this -> pkgID ) ; } return $ this -> pkgHandle ; }
Get the handle the the package that added this page.

@return string|null
Get the handle the the package that added this page .