protected function pickRelatedIds(array $insertedPKs)
    {
        return $this->generator->randomElements($insertedPKs[$this->relatedClass], $this->getQuantity($insertedPKs));
    }
protected function pickRelatedIds(array $insertedPKs)
    {
        return $this->generator->randomElements($insertedPKs[$this->relatedClass], $this->getQuantity($insertedPKs));
    }
protected function pickRelatedIds ( array $ insertedPKs ) { return $ this -> generator -> randomElements ( $ insertedPKs [ $ this -> relatedClass ] , $ this -> getQuantity ( $ insertedPKs ) ) ; }
Select the related ids to attach.

@param  array[] $insertedPKs
@return array
Select the related ids to attach .