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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 one_rule_present(self, pol_id):
 """Returns if atleast one rule is present in the policy. """

        pol_dict = self.policies[pol_id]
        for rule in pol_dict['rule_dict']:
            if self.is_rule_present(rule):
                return True
        return False