code: def __init__(self):
      self.waveglow_model = None
      self.tacotron2_model = None
      self.mapping = None
      self.device = None
      self.initialized = False
      self.metrics = None
  
file_path: serve/examples/text_to_speech_synthesizer/waveglow_handler.py
imports: import logging
  import os
  import uuid
  import zipfile
  import numpy
  import torch
  from scipy.io.wavfile import write
  from waveglow_model import WaveGlow
  from ts.torch_handler.base_handler import BaseHandler
label_desc: Use image node_id 1 to create a new WaveGlowSpeechSynthesizer object from inherited base classes: BaseHandler with example: obj = WaveGlowSpeechSynthesizer()