@cached_property<EOL><INDENT>def address_family(self):<DEDENT>
if len(self.raw) >= <NUM_LIT:20>:<EOL><INDENT>v = i(self.raw[<NUM_LIT:0>]) >> <NUM_LIT:4><EOL>if v == <NUM_LIT:4>:<EOL><INDENT>return socket.AF_INET<EOL><DEDENT>if v == <NUM_LIT:6>:<EOL><INDENT>return socket.AF_INET6<EOL><DEDENT><DEDENT>
The packet address family:
    - socket.AF_INET, if IPv4
    - socket.AF_INET6, if IPv6
    - None, otherwise.