diff --git a/api/core/ops/mlflow_trace/mlflow_trace.py b/api/core/ops/mlflow_trace/mlflow_trace.py
index 745157d108..355232a969 100644
--- a/api/core/ops/mlflow_trace/mlflow_trace.py
+++ b/api/core/ops/mlflow_trace/mlflow_trace.py
@@ -53,7 +53,7 @@ class MLflowDataTrace(BaseTraceInstance):
         """Lazy initialization to prevent blocking workflow when tracing service is unavailable."""
         if self._initialized:
             return
-        
+
         try:
             if isinstance(self._config, DatabricksConfig):
                 self._setup_databricks(self._config)
@@ -111,7 +111,7 @@ class MLflowDataTrace(BaseTraceInstance):
         """Simple dispatch to trace methods"""
         # Initialize on first use
         self._ensure_initialized()
-        
+
         try:
             if isinstance(trace_info, WorkflowTraceInfo):
                 self.workflow_trace(trace_info)
diff --git a/api/tests/unit_tests/core/ops/test_ops_trace_manager.py b/api/tests/unit_tests/core/ops/test_ops_trace_manager.py
index 351b8a01a2..886bc188f0 100644
--- a/api/tests/unit_tests/core/ops/test_ops_trace_manager.py
+++ b/api/tests/unit_tests/core/ops/test_ops_trace_manager.py
@@ -519,17 +519,15 @@ def test_extract_streaming_metrics_invalid_json():
 def test_trace_queue_manager_add_and_collect(monkeypatch):
     # With lazy initialization, get_ops_trace_instance should NOT be called during __init__
     mock_get_instance = MagicMock(return_value=True)
-    monkeypatch.setattr(
-        "core.ops.ops_trace_manager.OpsTraceManager.get_ops_trace_instance", mock_get_instance
-    )
+    monkeypatch.setattr("core.ops.ops_trace_manager.OpsTraceManager.get_ops_trace_instance", mock_get_instance)
     manager = TraceQueueManager(app_id="app-id", user_id="user")
     # get_ops_trace_instance should NOT be called during initialization (lazy init)
     mock_get_instance.assert_not_called()
-    
+
     # When trace_instance property is accessed, it should call get_ops_trace_instance
     _ = manager.trace_instance
     mock_get_instance.assert_called_once_with("app-id")
-    
+
     task = TraceTask(trace_type=TraceTaskName.CONVERSATION_TRACE)
     manager.add_trace_task(task)
     tasks = manager.collect_tasks()
@@ -539,14 +537,12 @@ def test_trace_queue_manager_add_and_collect(monkeypatch):
 def test_trace_queue_manager_lazy_init_error_handling(monkeypatch):
     """Test that TraceQueueManager handles initialization errors gracefully."""
     mock_get_instance = MagicMock(side_effect=ConnectionError("Service unavailable"))
-    monkeypatch.setattr(
-        "core.ops.ops_trace_manager.OpsTraceManager.get_ops_trace_instance", mock_get_instance
-    )
-    
+    monkeypatch.setattr("core.ops.ops_trace_manager.OpsTraceManager.get_ops_trace_instance", mock_get_instance)
+
     manager = TraceQueueManager(app_id="app-id", user_id="user")
     # get_ops_trace_instance should NOT be called during initialization
     mock_get_instance.assert_not_called()
-    
+
     # When trace_instance is accessed, it should handle the error gracefully
     instance = manager.trace_instance
     mock_get_instance.assert_called_once_with("app-id")