public function getIngestManifest($ingestManifest)
    {
        $ingestManifestId = Utilities::getEntityId(
            $ingestManifest,
            'WindowsAzure\MediaServices\Models\IngestManifest'
        );

        return IngestManifest::createFromOptions(
            $this->_getEntity("IngestManifests('{$ingestManifestId}')")
        );
    }