work with string, in cache to casting to str all var

autocomplete_multi_models/utils.py

@@ -51,10 +51,12 @@ def init_from_settings():
         get_fcn = import_string(get_set_names[0])
         set_fcn = import_string(get_set_names[1])
 
-        set_fcn("autocomplete_multi_models_test_settings", 1)
-        assert get_fcn("autocomplete_multi_models_test_settings", 3) == 1
-        set_fcn("autocomplete_multi_models_test_settings", 2)
-        assert get_fcn("autocomplete_multi_models_test_settings", 3) == 2
+        set_fcn("autocomplete_multi_models_test_settings", "1")
+        assert get_fcn("autocomplete_multi_models_test_settings", "3") == "1"
+        set_fcn("autocomplete_multi_models_test_settings", "2")
+        assert get_fcn("autocomplete_multi_models_test_settings", "3") == "2"
+
+        set_fcn("autocomplete_multi_models_test_settings", None)  # cleanup
 
         business_process.get_setting_from_storage = get_fcn
         business_process.set_setting_in_storage = set_fcn