pub unsafe extern "C" fn g_object_class_list_properties(
oclass: *mut GObjectClass,
n_properties: *mut c_uint,
) -> *mut *mut GParamSpec
pub unsafe extern "C" fn g_object_class_list_properties(
oclass: *mut GObjectClass,
n_properties: *mut c_uint,
) -> *mut *mut GParamSpec