Update train_multi.py

train_multi.py

@@ -4,4 +4,4 @@ from ultralytics import YOLO
 model = YOLO("yolov8s.yaml",)  # build a new model from scratch
 #model = YOLO("yolov8s.pt")  # load a pretrained model (recommended for training with a new dataset)
 # Use the model
-model.train(data="coco.yaml", epochs=100,device=[0, 1, 2, 3])
+model.train(data="coco128.yaml", epochs=100,device=[0, 1, 2, 3])