Create tour guide chatbot and add theme

app.py

@@ -0,0 +1,41 @@
+import gradio as gr
+from huggingface_hub import InferenceClient
+
+# this client will handle making requests to the model to generate responses
+client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
+
+def respond(message, history):
+
+    system_message = "You are a friendly tour guide chatbot. You always respond with an upbeat attitude!"
+    
+    # initialize a list of dictionaries to store the messages
+    messages = [{"role": "system", 
+                 "content": system_message}]
+    
+    # add all previous messages to the messages list 
+    if history:
+        messages.extend(history)
+
+    # add the current user’s message to the messages list
+    messages.append({"role": "user", "content": message})
+
+    # makes the chat completion API call, 
+    # sending the messages and other parameters to the model
+    # implements streaming, where one word/token appears at a time
+    response = ""
+
+    # iterate through each message in the method
+    for message in client.chat_completion(
+        messages,
+        max_tokens=200,
+        temperature=0.9,
+        stream=True
+    ):
+        # add the tokens to the output content
+        token = message.choices[0].delta.content # capture the most recent token
+        response += token # Add it to the response
+        yield response # yield the response
+
+chatbot = gr.ChatInterface(respond, type="messages", theme='d8ahazard/material_design_rd')
+
+chatbot.launch(debug=True)