code: def get_parser():
      parser = argparse.ArgumentParser(
          formatter_class=argparse.ArgumentDefaultsHelpFormatter,
          description="Mixing wav.scp files into a multi-channel wav.scp "
          "using sox.",
      )
      parser.add_argument(
          "scp", type=str, nargs="+", help="Give wav.scp"
      )
      parser.add_argument(
          "out",
          nargs="?",
          type=argparse.FileType("w"),
          default=sys.stdout,
          help="The output filename. "
          "If omitted, then output to sys.stdout",
      )
      return parser
  
imports: import argparse
  import io
  import sys
label_desc: Use image node_id 1 for calling a global function with example usage: get_parser() and returns: parser