let advance _ = (MatitaScript.instance ())#advance (); cursor () in
let retract _ = (MatitaScript.instance ())#retract (); cursor () in
let top _ = (MatitaScript.instance ())#goto `Top (); cursor () in
let bottom _ = (MatitaScript.instance ())#goto `Bottom (); cursor () in
let jump _ = (MatitaScript.instance ())#goto `Cursor (); cursor () in
let advance _ = (MatitaScript.instance ())#advance (); cursor () in
let retract _ = (MatitaScript.instance ())#retract (); cursor () in
let top _ = (MatitaScript.instance ())#goto `Top (); cursor () in
let bottom _ = (MatitaScript.instance ())#goto `Bottom (); cursor () in
let jump _ = (MatitaScript.instance ())#goto `Cursor (); cursor () in