Reference Shared API models

Hi everyone

We are switching from SwaggerHub to Postman, and I don’t find the way to reference another API where my models are shared for common responses like this:

$ref: “

this works perfectly in SwaggerHub but I don’t know which URL should I use in Postman (we have the domain, but I don’t know how to access the api itself)

Anyone can help? I don’t want to be copy/pasting all common models in every API