added a default prompt for testing

app.py

@@ -10,13 +10,10 @@ from torch.cuda import CudaError
 from hanlde_form_submit import on_form_submit
 from on_server_start import main as on_server_start_main
 
-
 on_server_start_main()
 
-
 st.title("Grouped Sampling Demo")
 
-
 with st.form("request_form"):
     selected_model_name: str = st.text_input(
         label="Model name",
@@ -37,6 +34,9 @@ with st.form("request_form"):
     submitted_prompt: str = st.text_area(
         label="Input for the model, It is highly recommended to write an English prompt.",
         help="Enter the prompt for the model. The model will generate a response based on this prompt.",
+        value="Instruction: Answer in yes or no.\n"
+              "Question: Is this a prompt?\n"
+              "Answer: ",
         max_chars=2048,
     )