Issues with setting up t3-create-app and server side events(SSE)

Hello,
I'm using practically out of the box t3-create app and try to set up project with using SSE.

I've added

splitLink

splitLink

and simple subscription

onPostAdd

onPostAdd

as in example from docs page(https://trpc.io/docs/client/links/httpSubscriptionLink)
However, when try get this sub on client

api.post.onPostAdd

api.post.onPostAdd

type of

onPostAdd

onPostAdd

(property) onPostAdd: DecorateProcedure<SubscriptionProcedure<{...}>

(property) onPostAdd: DecorateProcedure<SubscriptionProcedure<{...}>

Adding the same subscription to trpc sample app with sse support(https://github.com/trpc/examples-next-sse-chat) works perfectly, type of onPostAdd in same call:

(property) onPostAdd: {
useSubscription: ProcedureUseSubscription<{
...
}>;
}

What am I missing? TY in advance!