code: func DrawTerminal(w io.Writer) DrawFunc {
  	return DrawTerminalf(w, func(progress, total int64) string {
  		return fmt.Sprintf("%d/%d", progress, total)
  	})
  }
docs: // DrawTerminal returns a DrawFunc that draws a progress bar to an io.Writer
  // that is assumed to be a terminal (and therefore respects carriage returns).