update

src/diffusers/utils/torch_utils.py

@@ -15,6 +15,7 @@
 PyTorch utilities: Utilities related to PyTorch
 """
 
+import re
 from typing import List, Optional, Tuple, Union
 
 from . import logging
@@ -195,3 +196,17 @@ def device_synchronize(device_type: Optional[str] = None):
         device_type = get_device()
     device_mod = getattr(torch, device_type, torch.cuda)
     device_mod.synchronize()
+
+
+def _find_modules_by_class_name(module: "torch.nn.Module", class_name: str) -> List[Tuple[str, "torch.nn.Module"]]:
+    """
+    Recursively find all modules in a PyTorch module that match the specified class name. The class
+    name could be partial/full name or a regex pattern.
+    """
+    pattern = re.compile(class_name)
+    matching_name_module_pairs = []
+    for name, submodule in module.named_modules():
+        submodule_cls = unwrap_module(submodule).__class__
+        if pattern.search(submodule_cls.__name__):
+            matching_name_module_pairs.append((name, submodule))
+    return matching_name_module_pairs