add webchat interafce

app.py

@@ -28,7 +28,7 @@ def load_data():
 
 svm_retriever, vectorstore = load_data()
 
-def process_question(question, svm_retriever=svm_retriever, vectorstore=vectorstore):
+def process_question(question, history, svm_retriever=svm_retriever, vectorstore=vectorstore):
 
     docs_svm=svm_retriever.get_relevant_documents(question)
     print(len(docs_svm))
@@ -58,10 +58,12 @@ def process_question(question, svm_retriever=svm_retriever, vectorstore=vectorst
     return output
 
 
-iface = gr.Interface(
+iface = gr.ChatInterface(
+    title="Internal DOC QA",
+    theme=gr.themes.Soft,
     fn=process_question,  # the function to wrap
-    inputs="text",  # the input type
-    outputs="text",  # the output type
+    # inputs="text",  # the input type
+    # outputs="text",  # the output type
     examples=[
         [f"what is the process of raising an incident?"],
         [f"What is Cx0 program management?"],