code: def metadata_to_string(metadata):
      return "".join(token.text for token in metadata.tokens)
  
file_path: DeepSpeech/native_client/python/client.py
imports: from __future__ import absolute_import, division, print_function
  import argparse
  import numpy
  import shlex
  import subprocess
  import sys
  import wave
  import json
  from deepspeech import Model, version
  from timeit import default_timer
label_desc: Use image node_id 2 for calling a global function with example usage: metadata_to_string(metadata) and returns: str