protected function responseArrayToArrayOfEntities(array $responseArray, string $keyGetter = 'id'): array
    {
        $entities = [];

        foreach ($responseArray as $item) {
            /** @var \Apigee\Edge\Entity\EntityInterface $tmp */
            $tmp = $this->getEntitySerializer()->denormalize($item, $this->getEntityClass());
            $entities[$tmp->{$keyGetter}()] = $tmp;
        }

        return $entities;
    }