Fix pre-commit

Author: borchero

dataframely/_base_collection.py

@@ -145,7 +145,7 @@ def __new__(
         # 3) Check that inlining for sampling is configured correctly.
         if len(non_ignored_member_schemas) > 0:
             common_primary_keys = _common_primary_keys(non_ignored_member_schemas)
-            inlined_columns = set()
+            inlined_columns: set[str] = set()
             for member, info in result.members.items():
                 if info.inline_for_sampling:
                     if set(info.schema.primary_keys()) != common_primary_keys:

tests/collection/test_sample.py

@@ -8,7 +8,6 @@
 import dataframely as dy
 from dataframely.exc import ImplementationError
 from dataframely.random import Generator
-from dataframely.testing import create_collection
 from dataframely.testing.factory import create_collection_raw