Update main.py

main.py

@@ -18,7 +18,8 @@ import base64
 
 @app.post("/upload/")
 async def upload_file(file: UploadFile = File(...)):
-    contents = await file.read()
+    with file.file as f:
+        contents = f.read()
     result = client.predict(contents, api_name="/predict")
     return {"sketch_image": result[0]}