code: def _gen_model(self):
      conformer = (
          Conformer(
              input_dim=80,
              num_heads=4,
              ffn_dim=128,
              num_layers=4,
              depthwise_conv_kernel_size=31,
              dropout=0.1,
          )
          .to(device=self.device, dtype=self.dtype)
          .eval()
      )
      return conformer
  
file_path: audio/test/torchaudio_unittest/models/conformer/conformer_test_impl.py
imports: import torch
  from torchaudio.models import Conformer
  from torchaudio_unittest.common_utils import TestBaseMixin, torch_script
label_desc: Use image node_id 1 for calling the ConformerTestImpl obj's underlying member method code with example usage: obj._gen_model() and returns: conformer