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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 _is_policy_template(self, policy):
 """ Is the given policy data a policy template? Policy templates is a dictionary with one key which is the name of the template. :param dict policy: Policy data :return: True, if this is a policy template. False if it is not """


        return self._policy_template_processor is not None and \
            isinstance(policy, dict) and \
            len(policy) == 1 and \
            self._policy_template_processor.has(list(policy.keys())[0]) is True