code: def new(self, mode):
      func = self._mode_to_creator[mode]
      if func is None:
          return None
      return func()
  
imports: import random
  import logging
  import multiprocessing
  import threading
  from fiber.backend import get_backend
label_desc: Use image node_id 2 for calling the NNGContext obj's underlying member method code with example usage: obj.new(mode) and returns: func, None