runEventLoop() once.

I am sorry if this is not the correct forum for questions of this
nature, but I could not find anywhere else to pose this question.

I am trying to integrate the cocoa event loop with the wx event loop.
I basically need to be able to do this:

while running:
    AppHelper.runEventsOnce()
    wx.RunEvents()

I have the wx side figured out, but I can't find any information on
how to do something similar with pyobjc-cocoa. To re-iterate, I don't
want to enter into a loop, I simply want cocoa to process any pending
events and then return. I will iteratively call said function until
the program ends.

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