keyboard = (
  { key = "meta-p"; id = "change_window"; data = "20"; },
  { key = "meta-a"; id = "change_window"; data = "21"; },
  { key = "meta-s"; id = "change_window"; data = "22"; },
  { key = "meta-d"; id = "change_window"; data = "23"; },
  { key = "meta-f"; id = "change_window"; data = "24"; },
  { key = "meta-g"; id = "change_window"; data = "25"; },
  { key = "meta-h"; id = "change_window"; data = "26"; },
  { key = "meta-j"; id = "change_window"; data = "27"; },
  { key = "meta-k"; id = "change_window"; data = "28"; },
  { key = "meta-l"; id = "change_window"; data = "29"; },
  { key = "meta-z"; id = "change_window"; data = "30"; },
  { key = "meta-x"; id = "change_window"; data = "31"; },
  { key = "meta-c"; id = "change_window"; data = "32"; },
  { key = "meta-v"; id = "change_window"; data = "33"; },
  { key = "meta-b"; id = "change_window"; data = "34"; },
  { key = "meta-n"; id = "change_window"; data = "35"; },
  { key = "meta-m"; id = "change_window"; data = "36"; }
);