**Describe the bug** I run the tutorial on https://pytorch.org/hub/nvidia_deeplearningexamples_waveglow/ and I got errors `AttributeError: 'Tacotron2' object has no attribute 'text_to_sequence` it is the error from line 20 of this tutorial ```python3 sequence = np.array(tacotron2.text_to_sequence(text, ['english_cleaners']))[None, :] ``` **To Reproduce** it will occur no matter executing the tutorial on Google colab or on my local machine **Expected behavior** sequence should be generated from the tacotron2 model by inputting the text **Environment** Please provide at least: * Container version (e.g. pytorch:19.05-py3): pytorch 1.8.1+cu102 * GPUs in the system: (e.g. 8x Tesla V100-SXM2-16GB): GTX1080 * CUDA driver version (e.g. 418.67): 11.2