Please note that this is not a standalone script.
It’s a AddOn of the existing product vCard-Saas : https://codecanyon.net/item/infyvcardssaas-multi-user-business-card-builder-saas-vcards/35815965
Google Wallet AddOn for vCard-Saas
Create google wallet pass by using this add on. You can see real time prviwews and there are many other types for creating wallet pass.