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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 compare_root_path(path_cost1, path_cost2, bridge_id1, bridge_id2, port_id1, port_id2):
 """ Decide the port of the side near a root bridge. It is compared by the following priorities. 1. root path cost 2. designated bridge ID value 3. designated port ID value """

        result = Stp._cmp_value(path_cost1, path_cost2)
        if not result:
            result = Stp._cmp_value(bridge_id1, bridge_id2)
            if not result:
                result = Stp._cmp_value(port_id1, port_id2)
        return result