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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def btn_clicked(self, widget, data=None):
 """ Function is used for case that assistant does not have any subassistants """

        self.kwargs['subassistant_0'] = self.get_current_main_assistant().name
        self.kwargs['subassistant_1'] = data
        if 'subassistant_2' in self.kwargs:
            del self.kwargs['subassistant_2']
        self._open_path_window()