public function addPersonImage(ChildPersonImage $l)
    {
        if ($this->collPersonImages === null) {
            $this->initPersonImages();
            $this->collPersonImagesPartial = true;
        }

        if (!in_array($l, $this->collPersonImages->getArrayCopy(), true)) { // only add it if the **same** object is not already associated
            $this->doAddPersonImage($l);
        }

        return $this;
    }