pub unsafe extern "C" fn ges_timeline_element_add_child_property(
self_: *mut GESTimelineElement,
pspec: *mut GParamSpec,
child: *mut GObject,
) -> gboolean
pub unsafe extern "C" fn ges_timeline_element_add_child_property(
self_: *mut GESTimelineElement,
pspec: *mut GParamSpec,
child: *mut GObject,
) -> gboolean