def upsert(self, body, raise_exc=True, headers=False):
        return self._request(PUT, body, raise_exc, headers)
Test adding ASNs to NIPAP.
dataset/ETHPy150Open deontologician/restnavigator/restnavigator/halnav.py/HALNavigator.upsert--crossover with--dataset/ETHPy150Open SpriteLink/NIPAP/tests/nipapbase.py/NipapTest.test_add_asn