code: def __init__(self):
      self._mode_to_type = {
          "r": nnpy.PULL,
          "w": nnpy.PUSH,
          "rw": nnpy.PAIR,
          "rep": nnpy.REP,
          "req": nnpy.REQ,
      }
  
imports: import random
  import logging
  import multiprocessing
  import threading
  from fiber.backend import get_backend
label_desc: Use image node_id 1 to create a new NanomsgContext object from inherited base classes: SockContext with example: obj = NanomsgContext()