3DPortal Export service

I have received the code for 3d portal to call the service, can you pls be provide the documentation. Second the parameter which you are passing by i am not able to understand the parameter, configuration and advancedDataTrackingId in below. If possible please provide some examples also to use that service or sample program

public async Task<byte[]> Export(string version, string databaseName, string objectId, string configuration, string advancedDataTrackingId)