Update app.py

app.py

@@ -0,0 +1,26 @@
+import gradio as gr
+import vertexai, os
+
+from dotenv import load_dotenv, find_dotenv
+_ = load_dotenv(find_dotenv())
+
+credentials =
+project = 
+openai_api_key = os.environ['OPENAI_API_KEY']
+
+def invoke(prompt):
+    response = openai.ChatCompletion.create(
+        model = "gpt-3.5-turbo",
+        messages = [{"role": "user", "content": prompt}],
+        temperature = 0,
+        max_tokens = 500,
+    )
+    return response.choices[0].message["content"]
+
+gr.close_all()
+demo = gr.Interface(fn=invoke, 
+                    inputs = [gr.Textbox(label = "Prompt", lines = 1)],
+                    outputs = [gr.Textbox(label = "Completion", lines = 1)],
+                    title = "Generative AI - Text",
+                    description = "<a href='https://www.gradio.app/'>Gradio</a> UI using <a href='https://cloud.google.com/vertex-ai?hl=en/'>Google Vertex AI</a> API with Bison foundation model")
+demo.launch()