[Vala] How to call a gst_object_ref in vala?

["Jaap A. Haitsma" <jaap haitsma org>]

Hi,

I want to use a gst_bin_remove function [1], but I want the Element
that is removes not to be freed. For that I need to call
gst_object_ref before gst_bin_remove (See also [1]). How do I call
gst_object_ref in vala?

Thanks

Jaap

[1] http://library.gnome.org/devel/gstreamer/unstable/GstBin.html#gst-bin-remove