How can i not specify tls in IngressRoute if with defaultCertificate configured?

Traefik Traefik v2 (latest)
1

Hi, if i created a default tls store with defaultCertificate (the certificate is created by cert-manager)

how can i create ingressRoute without specifing tls option like this:

---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: whoami-https
  namespace: whoami
spec:
  entryPoints:
    - websecure
  routes:
    - match: Host(`whoami.example.com`)
      kind: Rule
      services:
        - name: whoami
          port: 80
  # tls:
  #   secretName: wildcard-cert-prod
2

seems it's impossible to not define the tls option in ingressroute

but you can reference certificate in default store like this

Declaring and referencing a TLSStore section, it's collapsed

apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: ingressroutebar

spec:
  entryPoints:
    - web
  routes:
  - match: Host(`example.com`) && PathPrefix(`/stripit`)
    kind: Rule
    services:
    - name: whoami
      port: 80
  tls:
    store: 
      name: default