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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 remove_remote(self, name_id):
 """ Remove a NameID to userID mapping :param name_id: NameID instance """

        _cn = code(name_id)
        _id = self.db[name_id.text]
        try:
            vals = self.db[_id].split(" ")
            vals.remove(_cn)
            self.db[_id] = " ".join(vals)
        except KeyError:
            pass

        del self.db[name_id.text]