code: def __init__(self):
      self._mode_to_creator = {
          "r": pynng.Pull0,
          "w": pynng.Push0,
          "rw": pynng.Pair0,
          "req": pynng.Req0,
          "rep": pynng.Rep0,
      }
  
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 NNGContext object from inherited base classes: SockContext with example: obj = NNGContext()