code: def alternative_cli(args):
      callback = _get_callback("alternative_cli")
      if callback:
          return callback.alternative_cli(args)
      else:
          return 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 2 for calling a global function with example usage: alternative_cli(args) and returns: callback, None