code: def test_from_pretrained_rnnt_model(
      self, fastpitch_model_path, conformer_rnnt_bpe_bn_model_path
  ):
      model = ASRWithTTSModel.from_pretrained_models(
          asr_model_path=conformer_rnnt_bpe_bn_model_path,
          tts_model_path=fastpitch_model_path,
      )
      assert isinstance(model.tts_model, FastPitchModel)
      assert isinstance(model.asr_model, EncDecRNNTBPEModel)
  
imports: import tempfile
  from pathlib import Path
  import pytest
  import torch.nn
  from omegaconf import DictConfig
  from nemo.collections.asr.models import ASRModel, EncDecCTCModelBPE, EncDecRNNTBPEModel
  from nemo.collections.asr.models.hybrid_asr_tts_models import ASRWithTTSModel
  from nemo.collections.asr.parts.submodules.batchnorm import FusedBatchNorm1d
  from nemo.collections.tts.models import FastPitchModel
label_desc: Use image node_id 2 for calling the TestASRWithTTSModel obj's underlying member method code with example usage: obj.test_from_pretrained_rnnt_model(fastpitch_model_path, conformer_rnnt_bpe_bn_model_path) without return types