GuestPaymentMethodManagementInterface

What it does

This interface defines the contract for managing payment methods in guest shopping carts (non-logged-in customers).

Developers use this to set a payment method on a guest cart, retrieve the current payment method, or get a list of all available payment methods for checkout.

It's essential for implementing guest checkout flows and payment integrations in Magento 2.

Public Methods

• set()
• get()
• getList()