public function setLastModification(\DateTime $lastModification)
    {
        $this->hydrate();
        $this->file->setLastModification($lastModification);

        return $this;
    }
public function setLastModification(\DateTime $lastModification)
    {
        $this->hydrate();
        $this->file->setLastModification($lastModification);

        return $this;
    }
{@inheritdoc}