Fix linting errors

examples/query_keyword_separation_example.py

@@ -95,6 +95,7 @@ book2 = open("./book_2.txt", encoding="utf-8")
 
 rag.insert([book1.read(), book2.read()])
 
+
 # Example function demonstrating the new query_with_separate_keyword_extraction usage
 async def run_example():
     query = "What are the top themes in this story?"
@@ -104,11 +105,12 @@ async def run_example():
     response = rag.query_with_separate_keyword_extraction(
         query=query,
         prompt=prompt,
-        param=QueryParam(mode="hybrid")  # Adjust QueryParam mode as necessary
+        param=QueryParam(mode="hybrid"),  # Adjust QueryParam mode as necessary
     )
 
     print("Extracted Response:", response)
 
+
 # Run the example asynchronously
 if __name__ == "__main__":
     asyncio.run(run_example())