Prompt User with a Dialog Box
Hi!
I am writing a plug-in and I would like to prompt the user with a little dialogue box to set some preferences.
Is there a helper function (similar to question_dialog() in `https://github.com/kovidgoyal/calibre/blob/master/src/calibre/gui2/__init__.py`) which would allow me to create a dialog and add widgets as needed?
Many thanks!
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