'Check to see if an alert policy exists
:param policy_name: name of the alert policy
:return: boolean of if the policy exists'

def _alert_policy_exists(self, policy_name):

    result = False
    for policy_id in self.policy_dict:
        if (self.policy_dict.get(policy_id).get('name') == policy_name):
            result = self.policy_dict.get(policy_id)
    return result
