public function getJobInputMediaAssets($job)
    {
        $jobId = Utilities::getEntityId(
            $job,
            'WindowsAzure\MediaServices\Models\Job'
        );

        $propertyList = $this->_getEntityList("Jobs('{$jobId}')/InputMediaAssets");
        $result = [];

        foreach ($propertyList as $properties) {
            $result[] = Asset::createFromOptions($properties);
        }

        return $result;
    }