Update app.py

app.py

@@ -22,6 +22,7 @@ def call_gemini(video_file: str, prompt: str, config: GenerateContentConfig = No
     """
     Call the Gemini model with the provided video file and prompt.
     The video file is read as bytes and passed with MIME type "video/mp4".
+    The prompt is passed as a plain string.
     Optionally accepts a config (e.g. response_schema) for structured output.
     """
     with open(video_file, "rb") as f:
@@ -30,7 +31,7 @@ def call_gemini(video_file: str, prompt: str, config: GenerateContentConfig = No
         model=MODEL_NAME,
         contents=[
             Part(file_data=file_bytes, mime_type="video/mp4"),
-            Part(text=prompt)
+            prompt,  # Pass prompt as a plain string
         ],
         config=config
     )