code: def _get_nic_attachements(self, maximum_adapters):
          
  
          nics = []
          vm_info = yield from self._get_vm_info()
          for adapter_number in range(0, maximum_adapters):
              entry = "nic{}".format(adapter_number + 1)
              if entry in vm_info:
                  value = vm_info[entry]
                  nics.append(value.lower())
              else:
                  nics.append(None)
          return nics
docs: Returns NIC attachements.
  
          :param maximum_adapters: maximum number of supported adapters
          :returns: list of adapters with their Attachment setting (NAT, bridged etc.)