Determines the next item type of a tuple or dictionary entry type.
type must be the result of a previous call to Variant.typeFirst or Variant.typeNext.
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 glib.VariantType 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 Variant.typeFirst or Variant.typeNext.
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.