How to get timestamp pretrained RNNTBPEModel
asr_model = nemo_asr.models.EncDecRNNTBPEModel.from_pretrained("nvidia/stt_en_conformer_transducer_large")
words_dict, word_ts_dict = {}, {}
hypotheses = asr_model.transcribe(paths2audio_files=[AUDIO_FILENAME], return_hypotheses=True)