diff --git a/src/cpl_query/base/__init__.py b/src/cpl_query/base/__init__.py
index b5c8942a..12c9541e 100644
--- a/src/cpl_query/base/__init__.py
+++ b/src/cpl_query/base/__init__.py
@@ -11,16 +11,20 @@ CPL Python integrated Queries
 
 """
 
-__title__ = 'cpl_query.base'
-__author__ = 'Sven Heidemann'
-__license__ = 'MIT'
-__copyright__ = 'Copyright (c) 2021 - 2023 sh-edraft.de'
-__version__ = '2023.4.0'
+__title__ = "cpl_query.base"
+__author__ = "Sven Heidemann"
+__license__ = "MIT"
+__copyright__ = "Copyright (c) 2021 - 2023 sh-edraft.de"
+__version__ = "2023.4.0"
 
 from collections import namedtuple
 
-
 # imports:
+from .default_lambda import default_lambda
+from .ordered_queryable import OrderedQueryable
+from .ordered_queryable_abc import OrderedQueryableABC
+from .queryable_abc import QueryableABC
+from .sequence import Sequence
 
-VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2023', minor='4', micro='0')
+VersionInfo = namedtuple("VersionInfo", "major minor micro")
+version_info = VersionInfo(major="2023", minor="4", micro="0")
diff --git a/unittests/unittests_query/iterable_query_test_case.py b/unittests/unittests_query/iterable_query_test_case.py
index 71f2e6eb..2b44c25e 100644
--- a/unittests/unittests_query/iterable_query_test_case.py
+++ b/unittests/unittests_query/iterable_query_test_case.py
@@ -251,8 +251,6 @@ class IterableQueryTestCase(unittest.TestCase):
         self.assertEqual(res, s_res)
 
     def test_then_by_descending(self):
-        x = List(int, List.range(1, 10)).order_by(lambda x: x).th
-
         res = (
             self._tests.order_by_descending(lambda user: user.address.street)
             .then_by_descending(lambda user: user.address.nr)