Update app/api/image_router.py

app/api/image_router.py

@@ -4,6 +4,7 @@ from fastapi.responses import StreamingResponse, JSONResponse
 from app.schemas import image as image_schemas
 from app.schemas.image import ShoeGenerateRequest
 from io import BytesIO
+from typing import Optional
 from app.services import image_service
 from app.services.image_service import generate_shoe_images
 from app.schemas.image import ShoeCheckResponse, UserInput, DressCheckResponse