Create app.py

app.py

@@ -0,0 +1,35 @@
+from __future__ import annotations
+
+import os
+import tempfile
+
+import gradio as gr
+from gradio.data_classes import FileData
+
+# Placeholder "video" so the runtime MIME-upgrade path has something to render.
+# The bytes don't need to be a valid mp4 — the workflow decides "this is video"
+# from mime_type. If you want a real playable video, replace this with a real .mp4.
+SAMPLE_PATH = os.path.join(tempfile.gettempdir(), "gr_api_any_repro.mp4")
+if not os.path.exists(SAMPLE_PATH):
+    with open(SAMPLE_PATH, "wb") as f:
+        f.write(b"\x00" * 1024)
+
+
+def generate(
+    prompt: str,
+    seed: float = 42,
+    steps: int = 6,
+) -> tuple[FileData, str, str]:
+    return (
+        FileData(path=SAMPLE_PATH, mime_type="video/mp4"),
+        f"Report: prompt={prompt!r} seed={int(seed)} steps={steps}",
+        f"{prompt} (refined)",
+    )
+
+
+with gr.Blocks() as demo:
+    gr.api(generate, api_name="generate")
+
+
+if __name__ == "__main__":
+    demo.launch()