Update app.py

app.py

@@ -41,7 +41,7 @@ def chat_inf(system_prompt,prompt,history):
 
         
 def get_screenshot(chat: list,height=5000,width=600,chatblock=[1],theme="light",wait=3000,header=True):
-    result = ss_client.predict(chat,height,width,chatblock,header,theme,wait,api_name="/run_script")
+    result = ss_client.predict(str(chat),height,width,chatblock,header,theme,wait,api_name="/run_script")
 		# str  in 'Chat: [('user','bot'),('user','bot')]' Textbox component
 		# float  in 'Height' Number component
 		# float  in 'Width' Number component