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Opening a SigmaStudio project from Python using win32 com

Category: Software
Product Number: ADAU1467
Software Version: SigmaStudio 4.7

I'm looking to open a saved SigmaStudio (.dspproj) file from Python. 

I can see there is a server.new_project method in the example provided at:

Is there an API reference somewhere or can someone provide an example of how to do this?