Services\GpService::modelToResource PHP Method

    public function modelToResource($gp)
    {
        $res = parent::modelToResource($gp);
        $res->gnc = $gp->nat_id;
        $res->title = $gp->contact->title;
        $res->family_name = $gp->contact->last_name;
        $res->given_name = $gp->contact->first_name;
        $res->primary_phone = $gp->contact->primary_phone ?: null;
        if ($gp->contact->address) {
            $resouce->address = Address::fromModel($gp->contact->address);
        }
        return $res;
    }