Update app.py

app.py

@@ -4,6 +4,9 @@ from langchain.llms import HuggingFaceEndpoint
 from langchain.prompts import FewShotChatMessagePromptTemplate, ChatPromptTemplate
 from langchain.schema.messages import SystemMessage
 
+# Set page config at the very top, before anything else
+st.set_page_config(page_title="DialogSum Few-Shot Summarizer", page_icon="🧠")
+
 # Load few-shot examples from dialogsum
 @st.cache_data
 def load_examples(n=3):
@@ -31,7 +34,6 @@ final_prompt = ChatPromptTemplate.from_messages([
 ])
 
 # Streamlit UI setup
-st.set_page_config(page_title="DialogSum Few-Shot Summarizer", page_icon="🧠")
 st.title("🧠 Few-Shot Dialog Summarizer")
 st.markdown("Uses real examples from `dialogsum` to guide the summary output.")