Zendesk\API\Resources\Core\Users::findMany PHP Method

    public function findMany(array $params = [])
    {
        if (isset($params['ids']) xor isset($params['external_ids'])) {
            if (isset($params['ids'])) {
                $key = 'ids';
                $ids = $params['ids'];
            } elseif (isset($params['external_ids'])) {
                $key = 'external_ids';
                $ids = $params['external_ids'];
            }
        } else {
            throw new \Exception('Missing parameters ids or external_ids');
        }
        return $this->traitFindMany($ids, [], $key);
    }