Update app.py

app.py

@@ -81,7 +81,7 @@ class Summarizer:
         message = completions.choices[0].text.strip()
         return message
 
-history_state = gr.State()
+history_state = gr.State([])
 summarizer = Summarizer()
 sentiment = SentimentAnalyzer()
 
@@ -202,7 +202,8 @@ class LangChain_Document_QA:
 
         return scores,customer_fig,agent_fig,customer_emotion_fig,agent_emotion_fig
 
-
+    def clear_func(self,history_state):
+        history_state.clear()
 
     def gradio_interface(self):
       with gr.Blocks(css="style.css",theme=gr.themes.Soft()) as demo:
@@ -234,6 +235,10 @@ class LangChain_Document_QA:
                   button=gr.Button(
                       value="🚀"
                   )
+              with gr.Column(scale=0.10, min_width=0):
+                  clear_btn=gr.Button(
+                      value="Clear"
+                  )                
           with gr.Row():
               with gr.Column(scale=0.40):
                   txt4 =gr.Textbox(
@@ -280,7 +285,8 @@ class LangChain_Document_QA:
               self._agent_text, [chatbot, txt2], chatbot
           )
           end_btn.click(self._display_history, [], txt4)
-
+          clear_btn.click(self.clear_func, [history_state],[])
+          clear_btn.click(lambda: None, None, chatbot, queue=False)
           Sentiment_btn.click(self._on_sentiment_btn_click,[],[txt5,plot,plot_2,plot_3,plot_4])
 
       demo.title = "Vodafone Generative AI CRM ChatBot"