pub unsafe extern "C" fn panel_workbench_find_from_widget(
widget: *mut GtkWidget,
) -> *mut PanelWorkbenchAvailable on crate feature
v1_4 only.pub unsafe extern "C" fn panel_workbench_find_from_widget(
widget: *mut GtkWidget,
) -> *mut PanelWorkbenchv1_4 only.