class_docstr: An object that connects Engines to each other.
  north and east sockets listen, while south and west sockets connect.
  
  This class is useful in cases where there is a set of nodes that
  must communicate only with their nearest neighbors.
docstr: return the connection info for this object's sockets.
docstr_tok: ["return","the","connection","info","for","this","object","'s","sockets","."]
code: def info(self):
      """return the connection info for this object's sockets."""
      return (self.location, self.north_url, self.east_url)
  
file_path: ipyparallel/docs/source/examples/wave2D/communicator.py
imports: import socket
  import zmq
  from ipyparallel.util import disambiguate_url
label_desc: Use image node_id 3 for calling the EngineCommunicator obj's underlying member method code with example usage: obj.info() and returns: self,  self,  self