...       session=IPSession,  # defragment on-the-flow
  ...       prn=lambda x: x.summary())
  >>> sniff(lfilter=lambda pkt: ARP in pkt)
  >>> sniff(iface="eth0", prn=Packet.summary)
  >>> sniff(iface=["eth0", "mon0"],
  ...       prn=lambda pkt: "%s: %s" % (pkt.sniffed_on,
  ...                                   pkt.summary()))
  >>> sniff(iface={"eth0": "Ethernet", "mon0": "Wifi"},
  ...       prn=lambda pkt: "%s: %s" % (pkt.sniffed_on,
  ...                                   pkt.summary()))

Examples: asynchronous
  >>> t = AsyncSniffer(iface="enp0s3")
  >>> t.start()
  >>> time.sleep(1)
  >>> print("nice weather today")
  >>> t.stop()
c