nvda

8f8bd9bb - Speech: BaseCallbackCommand's run method is now abstract. Note that CallbackCommand now has been changed slightly so it implements its own run method which executes the callback passed to the command rather than run being overridden directly. BeepCommand also now calls playWaveFile with async set to True, not False so that it does not block. finally, BaseCallbackCommand's run method docstring notes that the main thread is blocked.