Unable to unref some basic types from GStreamer

[xenobytezero]

While diagnosing a memory leak in my GStreamer app, I found the documentation of gst_app_sink_pull_sample notes that the resulting sample is a transfer:full response, and that we need to call gst_sample_unref to clean it up.

https://gstreamer.freedesktop.org/documentation/applib/gstappsink.html?gi-language=c#gst_app_sink_pull_sample

It doesn't seem like there is a way to call this unref() function. It doesnt exist in the typings provided by @girs/node-gst-1.0 or by casting the class to any and then directly calling the function on Gst.Sample.unref()

This is also true for a few classes that have a similar pattern (Gst.Buffer, Gst.Memory and Gst.Caps)

Since this isnt generated for the typings and doesnt seem to be recognised by node-gtk at all, this says to me that I'm missing something here.

Is there a way to call this function either directly or by manipulating the reference using GObject functions?