code: def update_time_train(prediction=None):
      callback = _get_callback("update_time_train")
      if callback:
          callback.update_time_train(prediction)
  
file_path: nnabla/python/src/nnabla/utils/callback.py
imports: from nnabla.config import nnabla_config
  import importlib
label_desc: Use image node_id 5 for calling a global function with example usage: update_time_train(prediction) without return types