Parameter for returning results. Default is transfer full.

NULL is ok, both for passing and for returning.

This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.

Don't free data after the code is done.

Parameter points to an array of items.

Generics and defining elements of containers and arrays.

Parameter for input. Default is transfer none.

The callback is valid only during the call to the method.

Free data after the code is done.

Override the parsed C type with given type