code: def get_best_from_status(args):
      callback = _get_callback("get_best_from_status")
      if callback:
          return callback.get_best_from_status(args)
      else:
          return None, None
  
file_path: nnabla/python/src/nnabla/utils/callback.py
imports: from nnabla.config import nnabla_config
  import importlib
label_desc: Use image node_id 4 for calling a global function with example usage: get_best_from_status(args) and returns: callback, None,  None