Fix v8_transforms docstring example (#17630)

ultralytics/data/augment.py

@@ -2280,7 +2280,7 @@ def v8_transforms(dataset, imgsz, hyp, stretch=False):
     Args:
         dataset (Dataset): The dataset object containing image data and annotations.
         imgsz (int): The target image size for resizing.
-        hyp (Dict): A dictionary of hyperparameters controlling various aspects of the transformations.
+        hyp (Namespace): A dictionary of hyperparameters controlling various aspects of the transformations.
         stretch (bool): If True, applies stretching to the image. If False, uses LetterBox resizing.
 
     Returns:
@@ -2288,8 +2288,9 @@ def v8_transforms(dataset, imgsz, hyp, stretch=False):
 
     Examples:
         >>> from ultralytics.data.dataset import YOLODataset
+        >>> from ultralytics.utils import IterableSimpleNamespace
         >>> dataset = YOLODataset(img_path="path/to/images", imgsz=640)
-        >>> hyp = {"mosaic": 1.0, "copy_paste": 0.5, "degrees": 10.0, "translate": 0.2, "scale": 0.9}
+        >>> hyp = IterableSimpleNamespace(mosaic=1.0, copy_paste=0.5, degrees=10.0, translate=0.2, scale=0.9)
         >>> transforms = v8_transforms(dataset, imgsz=640, hyp=hyp)
         >>> augmented_data = transforms(dataset[0])
     """