public function getIngestManifestFile($ingestManifestFile)
    {
        $ingestManifestFileId = Utilities::getEntityId(
            $ingestManifestFile,
            'WindowsAzure\MediaServices\Models\IngestManifestFile'
        );

        return IngestManifestFile::createFromOptions(
            $this->_getEntity("IngestManifestFiles('{$ingestManifestFileId}')")
        );
    }