Parameter for returning results. Default is transfer full.

NULL is ok, both for passing and for returning.

The callback is valid until first called.

Parameter for input and for returning results. Default is transfer full.

Don't free data after the code is done.

Generics and defining elements of containers and arrays.

Free data container after the code is done.

Free data after the code is done.

Override the parsed C type with given type

The callback is valid until the GDestroyNotify argument is called.