code: def plotfn(self, *args, **kwargs):
      kwargs["ikey"] = self.ikey
      kwargs["iaxis"] = self.iaxis
      kwargs["okey"] = self.okey
      kwargs["oaxis"] = self.oaxis
      kwargs["subsampling_factor"] = self.factor
      plot_multi_head_attention(*args, **kwargs)
  
file_path: espnet/espnet/nets/pytorch_backend/transformer/plot.py
imports: import logging
  import os
  import numpy
  from espnet.asr import asr_utils
label_desc: Use image node_id 1 for calling the PlotAttentionReport obj's underlying member method code with example usage: obj.plotfn() without return types