code: def main(_):
      if not FLAGS.src or not os.path.exists(FLAGS.src):
          # path not given or non-existant
          fail(
              "You have to specify which file or catalog to transcribe via the --src flag."
          )
      else:
          # path given and exists
          src_path = os.path.abspath(FLAGS.src)
          if os.path.isfile(src_path):
              if src_path.endswith(".catalog"):
                  # Transcribe batch of files via ".catalog" file (from DSAlign)
                  if FLAGS.dst:
                      fail(
                          "Parameter --dst not supported if --src points to a catalog"
                      )
                  catalog_dir = os.path.dirname(src_path)
                  with open(src_path, "r") as catalog_file:
                      catalog_entries = json.load(catalog_file)
                  catalog_entries = [
                      (
                          resolve(catalog_dir, e["audio"]),
                          resolve(catalog_dir, e["tlog"]),
                      )
                      for e in catalog_entries
                  ]
                  if any(
                      map(
                          lambda e: not os.path.isfile(e[0]),
                          catalog_entries,
                      )
                  ):
                      fail("Missing source file(s) in catalog")
                  if not FLAGS.force and any(
                      map(
                          lambda e: os.path.isfile(e[1]),
                          catalog_entries,
                      )
                  ):
                      fail(
                          "Destination file(s) from catalog already existing, use --force for overwriting"
                      )
                  if any(
                      map(
                          lambda e: not os.path.isdir(
                              os.path.dirname(e[1])
                          ),
                          catalog_entries,
                      )
                  ):
                      fail(
                          "Missing destination directory for at least one catalog entry"
                      )
                  src_paths, dst_paths = zip(*paths)
                  transcribe_many(src_paths, dst_paths)
              else:
                  # Transcribe one file
                  dst_path = (
                      os.path.abspath(FLAGS.dst)
                      if FLAGS.dst
                      else os.path.splitext(src_path)[0] + ".tlog"
                  )
                  if os.path.isfile(dst_path):
                      if FLAGS.force:
                          transcribe_one(src_path, dst_path)
                      else:
                          fail(
                              'Destination file "{}" already existing - use --force for overwriting'.format(
                                  dst_path
                              ),
                              code=0,
                          )
                  elif os.path.isdir(os.path.dirname(dst_path)):
                      transcribe_one(src_path, dst_path)
                  else:
                      fail("Missing destination directory")
          elif os.path.isdir(src_path):
              # Transcribe all files in dir
              print("Transcribing all WAV files in --src")
              if FLAGS.dst:
                  fail(
                      "Destination file not supported for batch decoding jobs."
                  )
              else:
                  if not FLAGS.recursive:
                      print(
                          "If you wish to recursively scan --src, then you must use --recursive"
                      )
                      wav_paths = glob.glob(src_path + "/*.wav")
                  else:
                      wav_paths = glob.glob(src_path + "/**/*.wav")
                  dst_paths = [
                      path.replace(".wav", ".tlog")
                      for path in wav_paths
                  ]
                  transcribe_many(wav_paths, dst_paths)
  
imports: from __future__ import absolute_import, division, print_function
  import os
  import sys
  import json
  import tensorflow
  import tensorflow.compat.v1.logging
  import logging
  import glob
  from deepspeech_training.util.audio import AudioFile
  from deepspeech_training.util.config import Config, initialize_globals
  from deepspeech_training.util.feeding import split_audio_file
  from deepspeech_training.util.flags import create_flags, FLAGS
  from deepspeech_training.util.logging import log_error, log_info, log_progress, create_progressbar
  from ds_ctcdecoder import ctc_beam_search_decoder_batch, Scorer
  from multiprocessing import Process, cpu_count
label_desc: Use image node_id 6 for calling a global function with example usage: main(_) without return types