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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 _add_base_info(self, event_dict):
 """ Instead of using a processor, adding basic information like caller, filename etc here. """

        f = sys._getframe()
        level_method_frame = f.f_back
        caller_frame = level_method_frame.f_back
        return event_dict