How to add a route to an existing route table on Vwan hub

On azure Vwan hub, how to add a route to the default table using Terraform?

On the terraform doc, The instruction referred only to add route to a new route table in Vwan hub.

I would like to add a route to the default table on my vwan hub. But I can’t find the correct command.

(https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/virtual_hub_route_table)