code: def __setitem__(self, key, value):
      self.writer[key] = value
      if self.writer_nframe is not None:
          self.writer_nframe.write(f"{key} {len(value)}\n")
  
imports: from pathlib import Path
  from typing import Dict
  import h5py
  import kaldiio
  import numpy
  import soundfile
  from espnet.utils.cli_utils import assert_scipy_wav_style
  from espnet.utils.io_utils import SoundHDF5File
label_desc: Use image node_id 2 for calling the KaldiWriter obj's underlying member method code with example usage: obj.__setitem__(key, value) without return types