pub unsafe extern "C" fn panel_settings_bind_with_mapping(
    self_: *mut PanelSettings,
    key: *const c_char,
    object: gpointer,
    property: *const c_char,
    flags: GSettingsBindFlags,
    get_mapping: GSettingsBindGetMapping,
    set_mapping: GSettingsBindSetMapping,
    user_data: gpointer,
    destroy: GDestroyNotify
)