docs: def dev_from_index(self, if_index):
          """Return interface name from interface index"""
          try:
              if_index = int(if_index)  # Backward compatibility
              return next(iface for iface in six.itervalues(self)
                          if iface.win_index == if_index)
          except (StopIteration, RuntimeError):
              if str(if_index) == "1":
                  # Test if the loopback interface is set up
                  if isinstance(scapy.consts.LOOPBACK_INTERFACE, NetworkInterface):  # noqa: E501
                      return scapy.consts.LOOPBACK_INTERFACE
              raise ValueError("Unknown network interface index %r" % if_index)