docs: def nic_2_json(self):
          """
          transform ariane_clip3 OS Instance object to Ariane server JSON obj
          :return: Ariane JSON obj
          """
          LOGGER.debug("NIC.nic_2_json")
          json_obj = {
              'nicID': self.id,
              'nicName': self.name,
              'nicMacAddress': self.mac_address,
              'nicDuplex': self.duplex,
              'nicSpeed': self.speed,
              'nicMtu': self.mtu,
              'nicOSInstanceID': self.nic_osi_id,
              'nicIPAddressID': self.nic_ipa_id
          }
          return json.dumps(json_obj)