code: def ListNetworkConnectionsFromClient(args):
    
    for proc in psutil.process_iter():
      try:
        connections = proc.connections()
      except (psutil.NoSuchProcess, psutil.AccessDenied):
        continue
  
      for conn in connections:
        if args.listening_only and conn.status != "LISTEN":
          continue
  
        res = rdf_client_network.NetworkConnection()
        res.pid = proc.pid
        res.process_name = proc.name()
        res.family = conn.family
        res.type = conn.type
        try:
          if conn.status:
            res.state = conn.status
        except ValueError:
          logging.warning("Encountered unknown connection status (%s).",
                          conn.status)
  
        res.local_address.ip, res.local_address.port = conn.laddr
        if conn.raddr:
          res.remote_address.ip, res.remote_address.port = conn.raddr
  
        yield res
docs: Gather open network connection stats.
  
    Args:
      args: An `rdf_client_action.ListNetworkConnectionArgs` instance.
  
    Yields:
      `rdf_client_network.NetworkConnection` instances.