Determines the next item type of a tuple or dictionary entry type.
type must be the result of a previous call to glib.variant_type.VariantType.first or glib.variant_type.VariantType.next.
If called on the key type of a dictionary entry then this call returns the value type. If called on the value type of a dictionary entry then this call returns null.
For tuples, null is returned when type is the last item in a tuple.
the next #GVariantType after type, or null
Since 2.24
Determines the next item type of a tuple or dictionary entry type.
type must be the result of a previous call to glib.variant_type.VariantType.first or glib.variant_type.VariantType.next.
If called on the key type of a dictionary entry then this call returns the value type. If called on the value type of a dictionary entry then this call returns null.
For tuples, null is returned when type is the last item in a tuple.