text: import argparse
  from sys import version_info
  
  from ..__about__ import __version__
  from . import _ascii, _binary, _compress, _convert, _decompress, _info
  
  
  def main(argv=None):
      parent_parser = argparse.ArgumentParser(
          description="Mesh input/output tools.",
          formatter_class=argparse.RawTextHelpFormatter,
      )
  
      parent_parser.add_argument(
          "--version",
          "-v",
          action="version",
          version=_get_version_text(),
          help="display version information",
      )
  
      subparsers = parent_parser.add_subparsers(
          title="subcommands", dest="command", required=True
      )
  
      parser = subparsers.add_parser("convert", help="Convert mesh files", aliases=["c"])
      _convert.add_args(parser)
      parser.set_defaults(func=_convert.convert)
  
      parser = subparsers.add_parser("info", help="Print mesh info", aliases=["i"])
      _info.add_args(parser)
      parser.set_defaults(func=_info.info)
  
      parser = subparsers.add_parser("compress", help="Compress mesh file")
      _compress.add_args(parser)
      parser.set_defaults(func=_compress.compress)
  
      parser = subparsers.add_parser("decompress", help="Decompress mesh file")
      _decompress.add_args(parser)
      parser.set_defaults(func=_decompress.decompress)
  
      parser = subparsers.add_parser("ascii", help="Convert to ASCII", aliases=["a"])
      _ascii.add_args(parser)
      parser.set_defaults(func=_ascii.ascii)
  
      parser = subparsers.add_parser("binary", help="Convert to binary", aliases=["b"])
      _binary.add_args(parser)
      parser.set_defaults(func=_binary.binary)
  
      args = parent_parser.parse_args(argv)
  
      return args.func(args)
  
  
  def _get_version_text():
      python_version = f"{version_info.major}.{version_info.minor}.{version_info.micro}"
      return "\n".join(
          [
              f"meshio {__version__} [Python {python_version}]",
              "Copyright (c) 2015-2021 Nico Schlömer et al.",
          ]
      )
  