code: def main():
      """
      Create a combined manifest file including word alignments and speaker IDs
      """
      input_manifest_filepath = args.input_manifest_filepath
      base_alignment_path = args.base_alignment_path
      output_manifest_filepath = args.output_manifest_filepath
      ctm_output_directory = args.ctm_output_directory
      libri_dataset_split = args.libri_dataset_split
      use_ctm_alignment_source = args.use_ctm_alignment_source
      output_precision = args.output_precision
  
      # Case 1: args.base_alignment_path is containing the ctm files
      if use_ctm_alignment_source:
          ctm_source_dir = args.base_alignment_path
      # Case 2: args.base_alignment_path is containing *.lab style alignments for the dataset
      else:
          create_librispeech_ctm_alignments(
              input_manifest_filepath,
              base_alignment_path,
              ctm_output_directory,
              libri_dataset_split,
          )
          ctm_source_dir = ctm_output_directory
  
      create_manifest_with_alignments(
          input_manifest_filepath,
          ctm_source_dir,
          output_manifest_filepath,
          data_format_style=args.data_format_style,
          silence_dur_threshold=args.silence_dur_threshold,
          output_precision=output_precision,
      )
  
file_path: NeMo/scripts/speaker_tasks/create_alignment_manifest.py
imports: import argparse
  import os
  import shutil
  from pathlib import Path
  from typing import List
  from nemo.collections.asr.parts.utils.manifest_utils import get_ctm_line, read_manifest, write_ctm, write_manifest
  from nemo.utils import logging
label_desc: Use image node_id 7 for calling a global function with example usage: main() without return types