Update app.py

app.py

@@ -178,7 +178,7 @@ def get_gemini_flash_response(prompt: str) -> str:
     
     response = client.models.generate_content(
         model="gemini-2.0-flash",
-        contents=prompt,
+        contents=[prompt],
         config=types.GenerateContentConfig(
         max_output_tokens=500,
         temperature=0.1