Update rag_langchain.py

rag_langchain.py

@@ -23,10 +23,10 @@ class LangChainRAG(BaseRAG):
     YOUTUBE_DIR = "/data/yt"
 
     LLM_CHAIN_PROMPT = PromptTemplate(
-        input_variables = ["question"], 
+        input_variables = ["query_str"], 
         template = os.environ["LLM_TEMPLATE"])
     RAG_CHAIN_PROMPT = PromptTemplate(
-        input_variables = ["context", "question"], 
+        input_variables = ["context_str", "query_str"], 
         template = os.environ["RAG_TEMPLATE"])
 
     def load_documents(self):