code: def _invalid(m, comment=INVALID_RESPONSE, out=None):
      '''
      Return invalid status.
      '''
      return _set_status(m, status=False, comment=comment, out=outf _invalid(m, comment=INVALID_RESPONSE, out=None):
      '''
      Return invalid status.
      '''
      return _set_status(m, status=False, comment=comment, out=out)
docs: Return invalid status.