Update pipeline_utils.py

Added Self in from_pretrained method so  inference will correctly recognize pipeline

Author: SahilCarterr

src/diffusers/pipelines/pipeline_utils.py

@@ -22,7 +22,7 @@
 import sys
 from dataclasses import dataclass
 from pathlib import Path
-from typing import Any, Callable, Dict, List, Optional, Union, get_args, get_origin
+from typing import Any, Callable, Dict, List, Optional, Self, Union, get_args, get_origin
 
 import numpy as np
 import PIL.Image
@@ -513,7 +513,7 @@ def dtype(self) -> torch.dtype:
 
     @classmethod
     @validate_hf_hub_args
-    def from_pretrained(cls, pretrained_model_name_or_path: Optional[Union[str, os.PathLike]], **kwargs):
+    def from_pretrained(cls, pretrained_model_name_or_path: Optional[Union[str, os.PathLike]], **kwargs) -> Self:
         r"""
         Instantiate a PyTorch diffusion pipeline from pretrained pipeline weights.