These optional extras allow you to integrate specific features from the library:
- Use create_special_tender to start Alipay and WeChat Pay transactions
- Enable third party sharing using the additional data object
- Handle the Dynamic Currency Conversion (DCC) callback
- Retrieve transaction information from the tx_store_report
- Use show_screen to display a screen on a large screen terminal (MX925)
- Start gift card transactions with create_special_tender