xioutil.SafeClose(outT)
			<-outDone
			return rErr
		}, OutCapacity: h.OutCapacity, InCapacity: h.InCapacity, Subroute: strings.Join(subroute, "/"),
	})
}

// TypedStream is a stream with specific types.
type TypedStream[Req, Resp RoundTripper] struct {
	// responses from the remote server.
	// Channel will be closed after error or when remote closes.