pub unsafe extern "C" fn ges_track_element_get_child_property(
object: *mut GESTrackElement,
property_name: *const c_char,
value: *mut GValue,
) -> gboolean
pub unsafe extern "C" fn ges_track_element_get_child_property(
object: *mut GESTrackElement,
property_name: *const c_char,
value: *mut GValue,
) -> gboolean