diff --git a/pilot/model/adapter.py b/pilot/model/adapter.py
index 31684d6a7..05f9ffdcb 100644
--- a/pilot/model/adapter.py
+++ b/pilot/model/adapter.py
@@ -232,6 +232,7 @@ class GorillaAdapter(BaseLLMAdaper):
         )
         return model, tokenizer
 
+
 class StarCoderAdapter(BaseLLMAdaper):
     pass
 
diff --git a/pilot/model/llm_out/gpt4all_llm.py b/pilot/model/llm_out/gpt4all_llm.py
index 4954a9933..3ea6b8206 100644
--- a/pilot/model/llm_out/gpt4all_llm.py
+++ b/pilot/model/llm_out/gpt4all_llm.py
@@ -1,10 +1,10 @@
 #!/usr/bin/env python3
 # -*- coding:utf-8 -*-
 
+
 def gpt4all_generate_stream(model, tokenizer, params, device, max_position_embeddings):
     stop = params.get("stop", "###")
     prompt = params["prompt"]
     role, query = prompt.split(stop)[0].split(":")
     print(f"gpt4all, role: {role}, query: {query}")
     yield model.generate(prompt=query, streaming=True)
-
diff --git a/pilot/server/chat_adapter.py b/pilot/server/chat_adapter.py
index d2af0733e..0bc53e8fd 100644
--- a/pilot/server/chat_adapter.py
+++ b/pilot/server/chat_adapter.py
@@ -191,6 +191,7 @@ class GorillaChatAdapter(BaseChatAdpter):
 
         return generate_stream
 
+
 class GPT4AllChatAdapter(BaseChatAdpter):
     def match(self, model_path: str):
         return "gptj-6b" in model_path
@@ -199,7 +200,7 @@ class GPT4AllChatAdapter(BaseChatAdpter):
         from pilot.model.llm_out.gpt4all_llm import gpt4all_generate_stream
 
         return gpt4all_generate_stream
-    
+
 
 class Llama2ChatAdapter(BaseChatAdpter):
     def match(self, model_path: str):