code: def update_forward_time():
      callback = _get_callback("update_forward_time")
      if callback:
          callback.update_forward_time()
  
file_path: nnabla/python/src/nnabla/utils/callback.py
imports: from nnabla.config import nnabla_config
  import importlib
label_desc: Use image node_id 11 for calling a global function with example usage: update_forward_time() without return types