pub fn clear_line() -> Nil

pub fn clear_screen() -> Nil

pub fn hide_cursor() -> Nil

pub fn move_cursor_down(lines: Int) -> Nil

pub fn move_cursor_up(lines: Int) -> Nil

pub fn overwrite_line(new_text: String) -> Nil

pub fn print_at(text: String, x: Int, y: Int) -> Nil

pub fn read_line(prompt: String) -> String

pub fn show_cursor() -> Nil

pub fn sleep(time: Int) -> Nil