pub unsafe extern "C" fn g_dbus_object_manager_client_new_for_bus(
bus_type: GBusType,
flags: GDBusObjectManagerClientFlags,
name: *const c_char,
object_path: *const c_char,
get_proxy_type_func: GDBusProxyTypeFunc,
get_proxy_type_user_data: gpointer,
get_proxy_type_destroy_notify: GDestroyNotify,
cancellable: *mut GCancellable,
callback: GAsyncReadyCallback,
user_data: gpointer,
)