add qunatized linear, refactor model for it soon to be addition

utils.py

@@ -5,3 +5,22 @@ import torch
 def replace_module(model, key: str, module: torch.nn.Module):
     parent, target, target_name = _get_submodules(model, key)
     setattr(parent, target_name, module)
+
+
+def find_all_linear_module_names(model) -> list[str]:
+    module_names = set()
+    for name, module in model.named_modules():
+        if isinstance(module, torch.nn.Linear):
+            module_names.add(name)
+
+    if 'lm_head' in module_names:  # needed for 16-bit
+        module_names.remove('lm_head')
+    return list(module_names)
+
+
+def find_all_outher_module_names(model) -> list[str]:
+    module_names = set()
+    for name, module in model.named_modules():
+        if not isinstance(module, torch.nn.Linear):
+            module_names.add(name)
+    return list(module_names)