getConfiguratorSetRepository example

$id = (int) $this->Request()->getParam('id');
        $dependency = null;
        if ($id > 0) {
            $dependency = $this->getConfiguratorDependencyRepository()->find($id);
        }
        if (!$dependency instanceof Dependency) {
            $dependency = new Dependency();
        }

        $data['childOption'] = $this->getConfiguratorOptionRepository()->find($data['childId']);
        $data['parentOption'] = $this->getConfiguratorOptionRepository()->find($data['parentId']);
        $data['configuratorSet'] = $this->getConfiguratorSetRepository()->find($data['configuratorSetId']);
        $dependency->fromArray($data);
        $this->get('models')->persist($dependency);
        $this->get('models')->flush();

        $builder = $this->get('models')->createQueryBuilder();
        $data = $builder->select(['dependency', 'dependencyParent', 'dependencyChild'])
            ->from(Dependency::class, 'dependency')
            ->leftJoin('dependency.parentOption', 'dependencyParent')
            ->leftJoin('dependency.childOption', 'dependencyChild')
            ->where('dependency.id = ?1')
            ->setParameter(1, $dependency->getId())