Update app.py

app.py

@@ -1,7 +1,12 @@
+import time
 import gradio as gr
 
-def greet(name):
-    return "Hello " + name + "!!"
+def slow_echo(message, history):
+    for i in range(len(message)):
+        time.sleep(0.05)
+        yield "You typed: " + message[: i+1]
 
-iface = gr.Interface(fn=greet, inputs="text", outputs="text")
-iface.launch()
+demo = gr.ChatInterface(slow_echo).queue()
+
+if __name__ == "__main__":
+    demo.launch()