'Flush neighbour entries
Given address entry is removed from neighbour cache (ARP or NDP). To
flush all entries pass string \'all\' as an address.
:param ip_version: Either 4 or 6 for IPv4 or IPv6 respectively
:param ip_address: The prefix selecting the neighbours to flush'

def flush(self, ip_version, ip_address):

    self._as_root([ip_version], ('flush', 'to', ip_address))
