fix: style

api/core/app/entities/task_entities.py

@@ -52,6 +52,7 @@ class WorkflowTaskState(TaskState):
     answer: str = ""
     outputs: Optional[Mapping[str, Any]] = None
 
+
 class StreamEvent(Enum):
     """
     Stream event

api/core/workflow/nodes/answer/answer_stream_processor.py

@@ -31,7 +31,6 @@ class AnswerStreamProcessor(StreamProcessor):
 
     def process(self, generator: Generator[GraphEngineEvent, None, None]) -> Generator[GraphEngineEvent, None, None]:
         for event in generator:
-
             if isinstance(event, NodeRunStartedEvent):
                 if event.route_node_state.node_id == self.graph.root_node_id and not self.rest_node_ids:
                     self.reset()