Worked on the stripe/stripe-js repository to deliver a key feature focused on Payment Wallets integration, specifically adding support for the Link payment option within the PaymentWalletsOption type. The implementation involved updating the TypeScript type definitions to include a new 'link' property, ensuring seamless API integration for frontend payment flows. Comprehensive tests were added to verify the correct handling of Link wallet scenarios and to prevent future regressions. The work demonstrated a methodical approach to extending payment functionality, emphasizing maintainability and reliability through robust test coverage, and leveraged skills in TypeScript, API integration, and frontend development throughout the process.