[D] gateways
[F] class-learndash-payment-button.php
[F] class-learndash-payment-gateway-integration.php
[F] class-learndash-paypal-ipn.php
[F] class-learndash-razorpay-integration.php
[F] class-learndash-stripe-connect-checkout-integration.php
[F] ld-emails-functions.php
[F] ld-login-registration-functions.php
[F] ld-payments-functions.php
[F] ld-purchase-invoice-functions.php
[F] ld-transaction-functions.php