public function getPlans($page = '')
    {
        $planObjects = [];
        $plans = $this->getPlanResource()->getAll($page);

        if ($plans instanceof \Exception) {
            throw $plans;
        }

        foreach ($plans as $plan) {
            $planObject = new Plan($this->getPlanResource());
            $planObjects[] = $planObject->_setAttributes($plan);
        }

        return $planObjects;
    }