Update

app.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from collections.abc import Iterator
+
+import gradio as gr
+
+
+def generate(message: str, history: list[dict]) -> Iterator[str]:
+    yield "hello"
+
+
+demo = gr.ChatInterface(fn=generate)
+demo.launch()