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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 get_modifier_mapping(self):
 """Return a list of eight lists, one for each modifier. The list can be indexed using X.ShiftMapIndex, X.Mod1MapIndex, and so on. The sublists list the keycodes bound to that modifier."""

        r = request.GetModifierMapping(display = self.display)
        return r.keycodes