fixup for imports

src/transformers/utils/import_utils.py

@@ -2275,14 +2275,11 @@ def define_import_structure(module_path: str) -> IMPORT_STRUCTURE_T:
 def clear_import_cache():
     """
     Clear cached Transformers modules to allow reloading modified code.
-    
+
     This is useful when actively developing/modifying Transformers code.
     """
     # Get all transformers modules
-    transformers_modules = [
-        mod_name for mod_name in sys.modules
-        if mod_name.startswith('transformers.')
-    ]
+    transformers_modules = [mod_name for mod_name in sys.modules if mod_name.startswith("transformers.")]
 
     # Remove them from sys.modules
     for mod_name in transformers_modules:
@@ -2293,8 +2290,8 @@ def clear_import_cache():
         del sys.modules[mod_name]
 
     # Force reload main transformers module
-    if 'transformers' in sys.modules:
-        main_module = sys.modules['transformers']
+    if "transformers" in sys.modules:
+        main_module = sys.modules["transformers"]
         if isinstance(main_module, _LazyModule):
             main_module._objects = {}  # Clear cached objects
         importlib.reload(main_module)