static default vs bgp default

[Anand Buddhdev]

Dear BIRD users,

I want to configure bird with a static default like this:

protocol static {
  route 0.0.0.0/0 unreachable;
}

so that if a more specific route isn't known, packets are discarded.
With the same BIRD instance, I want to peer over BGP with multiple
peers. However, if any one of these peers provides a default route over
BGP, I want it to take precedence over the static. How do I get bird to
install the peer-supplied default with a higher weight?

Regards,
Anand