public function unmark(string $id): void
    {
        $this->connection
            ->createQueryBuilder()
            ->delete($this->table, 'marker')
            ->where('marker.id = :id')
            ->setParameter('id', $id)
            ->execute();
    }
public function unmark(string $id): void
    {
        $this->connection
            ->createQueryBuilder()
            ->delete($this->table, 'marker')
            ->where('marker.id = :id')
            ->setParameter('id', $id)
            ->execute();
    }
{@inheritdoc}