[Python] Python: Get the Source State in Twain

I have a python script where I am using Twain to interact with my scanner. First I initialize my source:

scanner = sm.OpenSource()


set a few capabilities then request to acquire an image:

scanner.RequestAcquire(0, 1)


I then try to transfer an image:

scanner.XferImageNatively()


I get a Twain Sequence error, the docs tell me this happens when it is in the incorrect state. I can not for the life of me find in the docs how to check said state though. Can anyone offer some assistance??

I would like to check the state and wait until my scanner is in a valid state.

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