@namespace("eu.dnetlib.iis.metadataextraction.schemas")
protocol IIS{

    import idl "ExtractedDocumentMetadata.avdl";
    
    record ExtractedDocumentMetadataEnvelope {
        eu.dnetlib.iis.metadataextraction.schemas.ExtractedDocumentMetadata data;
        string origin;
    }
    
}