Update app.py

app.py

@@ -35,6 +35,7 @@ sandbox = gr.Interface.load(
     name= custom_model, 
     title="""AlStable sandbox""",
     inputs = gr.Textbox(label="Prompt", show_label=False, max_lines=2, placeholder="Enter your prompt", elem_id="input-prompt"), 
+    gr.inputs.Dropdown(models), 
     description="""Demo for <a href="https://huggingface.co/stabilityai/stable-diffusion-2-1">AlStable</a> Stable Diffusion model.""",
     article=article,
     api_key=API_KEY