fix(#868k5bbdr): Add blank lines after inline imports (blue formatter)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: vavsab

tests/test_djangocache.py

@@ -241,6 +241,7 @@ def test_data_types(self):
     def test_data_types_unsafe_rejected(self):
         # Arbitrary functions and classes are blocked by SafeUnpickler (CVE-2025-69872)
         from diskcache.core import UnpicklingError
+
         cache.set('fn', f)
         with self.assertRaises(UnpicklingError):
             cache.get('fn')
@@ -252,6 +253,7 @@ def test_cache_read_for_model_instance(self):
         # Django model instances use django.db.models.base.model_unpickle which
         # is not in the SafeUnpickler allowlist (CVE-2025-69872).
         from diskcache.core import UnpicklingError
+
         expensive_calculation.num_runs = 0
         Poll.objects.all().delete()
         my_poll = Poll.objects.create(question='Well?')
@@ -276,6 +278,7 @@ def test_cache_read_for_model_instance_with_deferred(self):
         # Deferred querysets reference user model classes not in the SafeUnpickler
         # allowlist (CVE-2025-69872).
         from diskcache.core import UnpicklingError
+
         expensive_calculation.num_runs = 0
         Poll.objects.all().delete()
         Poll.objects.create(question='What?')