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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 parse(self, target):
 """ Parse nested rulesets and save it in cache. """

        if isinstance(target, ContentNode):
            if target.name:
                self.parent = target
                self.name.parse(self)
                self.name += target.name
            target.ruleset.append(self)
        self.root.cache['rset'][str(self.name).split()[0]].add(self)
        super(Ruleset, self).parse(target)