public function generate($count)
    {
        if (!is_int($count) || $count < 1) {
            throw new \InvalidArgumentException(sprintf('%s requires a value greater than 1.', __METHOD__));
        }

        $ownerIds = $this->getValidOwnerIds();

        for ($i = 0; $i < $count; $i++) {
            /** @var Entity\Content $entity */
            $entity = $this->repository->create([
                'datecreated'   => date('Y-m-d H:i:s', time() - rand(0, 365 * 24 * 60 * 60)),
                'datepublish'   => date('Y-m-d H:i:s', time() - rand(0, 365 * 24 * 60 * 60)),
                'datedepublish' => null,
                'status'        => 'published',
            ]);
            $ownerKey = array_rand($ownerIds, 1);
            $entity->setOwnerid($ownerIds[$ownerKey]);

            $this->fillEntity($entity);
        }
        $summary = $this->createSummary;
        $this->createSummary = null;

        return $summary;
    }