Add: targets and ignore to sparsity compression config (#159)

src/compressed_tensors/config/base.py

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 from enum import Enum
-from typing import Optional
+from typing import List, Optional
 
 from compressed_tensors.registry import RegistryMixin
 from pydantic import BaseModel
@@ -37,11 +37,16 @@ class SparsityCompressionConfig(RegistryMixin, BaseModel):
     Base data class for storing sparsity compression parameters
 
     :param format: name of compression format
+    :param targets: List of layer names or layer types that aren't sparse and should
+        be ignored during compression. By default, assume all layers are targeted
+    :param ignore: List of layer names (unique) to ignore from targets. Defaults to None
     :param global_sparsity: average sparsity of the entire model
     :param sparsity_structure: structure of the sparsity, such as
     "unstructured", "2:4", "8:16" etc
     """
 
     format: str
+    targets: Optional[List[str]] = None
+    ignore: Optional[List[str]] = None
     global_sparsity: Optional[float] = 0.0
     sparsity_structure: Optional[str] = "unstructured"