'Ensures that a policy is present
:param p: dictionary of a policy name
:return: tuple of if an addition occurred and the name of the policy that was added'

def _ensure_policy_is_present(self, p):

    changed = False
    policy = self._policy_exists(policy_name=p['name'])
    if (not policy):
        changed = True
        policy = None
        if (not self.module.check_mode):
            policy = self._create_policy(p)
    return (changed, policy)
