Utility function to convert a SList of IP6Route objects into a GenericArray of ValueArrays of (#GArray of uchars), uint32, (#GArray of uchars), and uint32 representing a list of NetworkManager IPv6 routes (which is a tuple of destination, prefix, next hop, and metric).
The specific format of this serialization is not guaranteed to be stable and may be extended in the future.
| list |
a list of IP6Route objects |
| value |
a pointer to a Value into which to place the converted routes, which should be unset by the caller (when no longer needed) with unset. |