code: def __init__(self, input_names):
      super(MakePadMaskTest, self).__init__()
      self.input_names = input_names
  
file_path: espnet/test/test_nets_utils.py
imports: import pytest
  import torch
  from espnet.nets.pytorch_backend.nets_utils import make_pad_mask, trim_by_ctc_posterior
label_desc: Use image node_id 1 to create a new MakePadMaskTest object from inherited base classes: torch.nn with example: obj = MakePadMaskTest(input_names)