style: ruff format

backend/tests/conftest.py

@@ -53,6 +53,7 @@ def client(mock_events_collection, mock_watermarks_collection, monkeypatch):
     class FakeRedis:
         async def get(self, key):
             return None
+
         async def setex(self, key, ttl, value):
             pass
 

backend/tests/test_api.py

@@ -92,6 +92,7 @@ def test_explain_event_with_llm_mock(client, mock_events_collection, monkeypatch
     class FakeRedis:
         async def get(self, key):
             return None
+
         async def setex(self, key, ttl, value):
             pass
 

backend/tests/test_ask.py

@@ -405,7 +405,15 @@ class TestAskCaching:
             "include_tags": None,
             "exclude_tags": None,
         }
-        asyncio.run(set_cached_ask(redis, "What happened to USER-001?", filters_snapshot, [{"id": "evt-cache"}], {"answer": "Cached answer!", "llm_used": True, "llm_error": None}))
+        asyncio.run(
+            set_cached_ask(
+                redis,
+                "What happened to USER-001?",
+                filters_snapshot,
+                [{"id": "evt-cache"}],
+                {"answer": "Cached answer!", "llm_used": True, "llm_error": None},
+            )
+        )
 
         async def fake_get_arq_pool():
             return redis
@@ -451,6 +459,7 @@ class TestAskCaching:
 
             async def enqueue_job(self, func, *args, **kwargs):
                 from unittest.mock import MagicMock
+
                 job = MagicMock()
                 job.job_id = "job-12345"
                 self.enqueued.append((func, args, kwargs))