docs: def _parse_nics_embedded_health(self, data):
          """Gets the NIC details from get_embedded_health data
  
           Parse the get_host_health_data() for essential properties
  
          :param data: the output returned by get_host_health_data()
          :returns: a dictionary of port numbers and their corresponding
                    mac addresses.
          :raises IloError, if unable to get NIC data.
  
          """
          nic_data = self.get_value_as_list((data['GET_EMBEDDED_HEALTH_DATA']
                                            [self.NIC_INFORMATION_TAG]), 'NIC')
  
          if nic_data is None:
              msg = "Unable to get NIC details. Data missing"
              raise exception.IloError(msg)
          nic_dict = {}
          for item in nic_data:
              try:
                  port = item['NETWORK_PORT']['VALUE']
                  mac = item['MAC_ADDRESS']['VALUE']
                  self._update_nic_data_from_nic_info_based_on_model(nic_dict,
                                                                     item, port,
                                                                     mac)
  
              except KeyError:
                  msg = "Unable to get NIC details. Data missing"
                  raise exception.IloError(msg)
  
          return nic_dict