code: def __init__(self, id, interface="tcp://*", root=False):
      self.id = id
      self.root = root
  
      # create context and sockets
      self._ctx = zmq.Context()
      if root:
          self.pub = self._ctx.socket(zmq.PUB)
      else:
          self.sub = self._ctx.socket(zmq.SUB)
          self.sub.SUBSCRIBE = b""
      self.downstream = self._ctx.socket(zmq.PULL)
      self.upstream = self._ctx.socket(zmq.PUSH)
  
      # bind to ports
      interface_f = interface + ":%i"
      if self.root:
          pub_port = self.pub.bind_to_random_port(interface)
          self.pub_url = interface_f % pub_port
  
      tree_port = self.downstream.bind_to_random_port(interface)
      self.tree_url = interface_f % tree_port
      self.downstream_poller = zmq.Poller()
      self.downstream_poller.register(self.downstream, zmq.POLLIN)
  
      # guess first public IP from socket
      self.location = socket.gethostbyname_ex(socket.gethostname())[-1][
          0
      ]
  
imports: import re
  import socket
  from functools import reduce
  import zmq
  from ipyparallel.serialize import deserialize_object, serialize_object
  from ipyparallel.util import disambiguate_url
label_desc: Use image node_id 1 to create a new BinaryTreeCommunicator object  with example: obj = BinaryTreeCommunicator(id, interface, root)