def from_of_tlv(cls, tlv):
"""Return an instance from a pyof OXM TLV."""
ip_address = IPAddress()
ip_address.unpack(tlv.oxm_value)
addr_str = str(ip_address)
value = addr_str
if tlv.oxm_hasmask:
value = f'{addr_str}/{bytes_to_mask(tlv.oxm_value[4:], 32)}'
return cls(value)
def from_of_tlv(cls, tlv):
"""Return an instance from a pyof OXM TLV."""
ip_address = IPAddress()
ip_address.unpack(tlv.oxm_value)
ip_str = str(ip_address)
return cls(ip_str)
