define echo function & set up chat interface

app.py

@@ -0,0 +1,63 @@
+#******* import gradio as gr *******
+
+
+# importing the gradio library! we're going to use this for our chat interface. 
+# we're giving it an alias -- gr. just like numpy & pandas 
+
+# now we're going to use the chat interface function from the gradio library to create 
+# a new instance of a chat interface 
+
+# we're gonna do this by saving it to a variable 
+# we'll call it chatbot & we'll assign it to an instance of a chat interface from the gradio library 
+
+# ********** chatbot = gr.ChatInterface() ********)
+
+# this alone isn't going to launch the chat interface 
+# we'll hit return & call the launch function, with the open & closed parenthesis after it 
+
+# ************ chatbot.launch() *********
+
+# if you were to save this & try running it, you're gonna get an error message 
+# the reason is this chatinterface function expects to receive a parameter or an argument 
+# this argument is going to be a function 
+# this function should define or handle how the chatbot should actually behave 
+# what kind of interactions should we expect? 
+
+# import gradio as gr 
+
+    # ***enter new code here on line 3** 
+
+#chatbot = gr.ChatInterface()
+#chatbot.launch()
+
+# before we actually initalize the chatinterface 
+# so we're actually going to jump back up here (to line 3) 
+# for our simple chatbot, we're gonna make it an echo function 
+# its gonna echo what the user types in... so lets call it echo 
+
+# so here, whatever we return should be the chatbot's response 
+# theres something else we need to make note of 
+# it needs to be passed into the chatInterface
+    # so lets add that inside the parenthesis chatbot = gr.ChatInterface(echo)
+# but!!!! this function must have 2 parameters 
+# the message the user typed in & the history! 
+    # add message, history inside def(echo)
+# so when chat interface picks up that there's a new message from the user, 
+# its going to call the echo function, passing in the message from the user & any history from the prior conversation 
+
+# we want our chatbot to be like a parrot right now, where it just returnes the same thing 
+    # add message after return 
+    #return message 
+    # we just want it to repeat what we're saying! 
+
+#then update commit changes note 
+# define echo function & set up chat interface 
+
+import gradio as gr 
+
+def echo(message, history)
+    return message 
+
+chatbot = gr.ChatInterface(echo)
+chatbot.launch()
+