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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(self, rulefactory):
 """Add a new rule or factory to the map and bind it. Requires that the rule is not bound to another map. :param rulefactory: a :class:`Rule` or :class:`RuleFactory` """

        for rule in rulefactory.get_rules(self):
            rule.bind(self)
            self._rules.append(rule)
            self._rules_by_endpoint.setdefault(rule.endpoint, []).append(rule)
        self._remap = True