What is the preferred way how to add Caffeine cache to kotlin with coroutines

Question

I am trying to integrate Caffeine cache into kotlin+spring boot application, however, I am getting the problem of calling the suspension function in the non-coroutine body. I get this, but I am looking for a solution that should be a bit more standard. I can find only one solution on the web that leads to SO, where I do not really see a stable way how to fix this.

inMemoryCache.get(id) { id ->
   some call to external service <--- "Suspension function can be called only within coroutine body"
}