def METHOD_NAME(ctx, vlan):
    cfg, _ = ctx
    _, vlan_ip_data, _ = cfg
    proxy_arp = "disabled"
    for key in vlan_ip_data:
        if clicommon.is_ip_prefix_in_key(key):
            continue
        if vlan == key:
            proxy_arp = vlan_ip_data[key].get("proxy_arp", "disabled")
    return proxy_arp