code: def get_parser():
      parser = argparse.ArgumentParser(
          description="convert FBANK to WAV using Griffin-Lim algorithm",
          formatter_class=argparse.ArgumentDefaultsHelpFormatter,
      )
      parser.add_argument(
          "--fs", type=int, default=22050, help="Sampling frequency"
      )
      parser.add_argument(
          "--fmax",
          type=int,
          default=None,
          nargs="?",
          help="Maximum frequency",
      )
      parser.add_argument(
          "--fmin",
          type=int,
          default=None,
          nargs="?",
          help="Minimum frequency",
      )
      parser.add_argument(
          "--n_fft", type=int, default=1024, help="FFT length in point"
      )
      parser.add_argument(
          "--n_shift",
          type=int,
          default=512,
          help="Shift length in point",
      )
      parser.add_argument(
          "--win_length",
          type=int,
          default=None,
          nargs="?",
          help="Analysis window length in point",
      )
      parser.add_argument(
          "--n_mels",
          type=int,
          default=None,
          nargs="?",
          help="Number of mel basis",
      )
      parser.add_argument(
          "--window",
          type=str,
          default="hann",
          choices=["hann", "hamming"],
          help="Type of window",
      )
      parser.add_argument(
          "--iters",
          type=int,
          default=100,
          help="Number of iterations in Grriffin Lim",
      )
      parser.add_argument(
          "--filetype",
          type=str,
          default="mat",
          choices=["mat", "hdf5"],
          help="Specify the file format for the rspecifier. "
          '"mat" is the matrix format in kaldi',
      )
      parser.add_argument("rspecifier", type=str, help="Input feature")
      parser.add_argument("outdir", type=str, help="Output directory")
      return parser
  
file_path: espnet/utils/convert_fbank_to_wav.py
imports: import argparse
  import logging
  import os
  import librosa
  import numpy
  from packaging.version import parse
  from scipy.io.wavfile import write
  from espnet.utils.cli_readers import file_reader_helper
  from espnet.utils.cli_utils import get_commandline_args
label_desc: Use image node_id 3 for calling a global function with example usage: get_parser() and returns: parser