[Quant] Add SupportsQuant to phi3 and clip (#13104)

vllm/model_executor/layers/quantization/base_config.py

@@ -2,7 +2,7 @@
 
 import inspect
 from abc import ABC, abstractmethod
-from typing import Any, Dict, List, Mapping, Optional, Type
+from typing import Any, Dict, List, Optional, Type
 
 import torch
 from torch import nn
@@ -59,7 +59,11 @@ def method_has_implemented_embedding(
 
 class QuantizationConfig(ABC):
     """Base class for quantization configs."""
-    packed_modules_mapping: Mapping[str, List[str]] = dict()
+
+    def __init__(self):
+        super().__init__()
+        # mapping is updated by models as they initialize
+        self.packed_modules_mapping: Dict[str, List[str]] = dict()
 
     @abstractmethod
     def get_name(self) -> str: