class_docstr: ASR Interface for ESPnet model implementation.
docstr: Get custom_updater of the model (Chainer only).
code: def custom_updater(*args, **kw):
      """Get custom_updater of the model (Chainer only)."""
      raise NotImplementedError(
          "custom updater method is not implemented"
      )
  
file_path: espnet/espnet/nets/chainer_backend/asr_interface.py
imports: import chainer
  from espnet.nets.asr_interface import ASRInterface
label_desc: Use image node_id 2 for calling the ChainerASRInterface obj's underlying member method code with example usage: obj.custom_updater() without return types