Get a specific policy for a vhost.

        :param vhost: The virtual host the policy is for
        :type vhost: str
        :param name: The name of the policy
        :type name: str

def get_policy_for_vhost(self, vhost, name):
        """
        Get a specific policy for a vhost.

        :param vhost: The virtual host the policy is for
        :type vhost: str
        :param name: The name of the policy
        :type name: str
        """
        return self._api_get('/api/policies/{0}/{1}'.format(
            urllib.parse.quote_plus(vhost),
            urllib.parse.quote_plus(name),
        ))