code: def _get_model_config(self):
      return {
          "input_dim": 80,
          "num_symbols": 128,
          "encoding_dim": 64,
          "symbol_embedding_dim": 32,
          "num_lstm_layers": 2,
          "lstm_hidden_dim": 11,
          "lstm_layer_norm": True,
          "lstm_layer_norm_epsilon": 1e-5,
          "lstm_dropout": 0.3,
          "joiner_activation": "tanh",
          "time_reduction_stride": 4,
          "conformer_input_dim": 100,
          "conformer_ffn_dim": 33,
          "conformer_num_layers": 3,
          "conformer_num_heads": 4,
          "conformer_depthwise_conv_kernel_size": 31,
          "conformer_dropout": 0.1,
      }
  
file_path: audio/test/torchaudio_unittest/prototype/rnnt_test_impl.py
imports: import torch
  from torchaudio.prototype.models import conformer_rnnt_model
  from torchaudio_unittest.common_utils import TestBaseMixin, torch_script
label_desc: Use image node_id 2 for calling the ConformerRNNTTestImpl obj's underlying member method code with example usage: obj._get_model_config() and returns: dict