Usage: ./manage.py groups [OPTIONS] COMMAND [ARGS]...

  Test multiple groups commands and callbacks

Options:
  --version            Show program's version number and exit.
  --settings <str>     The Python path to a settings module, e.g.
                       "myproject.settings.main". If this isn't provided, the
                       DJANGO_SETTINGS_MODULE environment variable will be
                       used.
  --pythonpath <path>  A directory to add to the Python path, e.g.
                       "/home/djangoprojects/myproject".
  --traceback          Raise on CommandError exceptions
  --no-color           Don't colorize the command output.
  --force-color        Force colorization of the command output.
  --skip-checks        Skip system checks.
  --help               Show this message and exit.

Commands:
  echo    Echo the given message.
  math    Do some math at the given precision.
  string  String operations.
