{
{% for vlan, addrs in prefixes | selectattr('vrf')
        | selectattr('vlan') | selectattr('vlan.id', 'in', vlans|map(attribute='id'))
        | sort(attribute='vlan.vid') | groupby('vlan.vid') %}
  "{{ addrs[0].vlan.name }}": {
    "ip": {{ addrs | selectattr('family.value', '==', 4) | map(attribute='prefix') | to_json }},
    "ip6": {{ addrs | selectattr('family.value', '==', 6) | map(attribute='prefix') | to_json }}
  }{% if not loop.last %},{% endif +%}
{% endfor %}
}