code: func (h *JHD1313M1Driver) Scroll(lr bool) error {
  	if lr {
  		_, err := h.lcdConnection.Write([]byte{LCD_CMD, LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT})
  		return err
  	}
  
  	_, err := h.lcdConnection.Write([]byte{LCD_CMD, LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT})
  	return err
  }
docs: // Scroll sets the scrolling direction for the display, either left to right, or
  // right to left.