rdblue commented on code in PR #6139:
URL: https://github.com/apache/iceberg/pull/6139#discussion_r1024484533


##########
python/pyiceberg/expressions/__init__.py:
##########
@@ -18,18 +18,37 @@
 from __future__ import annotations
 
 from abc import ABC, abstractmethod
-from dataclasses import dataclass
 from functools import reduce
-from typing import ClassVar, Generic, TypeVar
-
-from pyiceberg.expressions.literals import Literal
+from typing import (
+    Any,
+    Generic,
+    Iterable,
+    Set,
+    Type,
+    Union,
+)
+
+from pyiceberg.expressions.literals import Literal, literal
 from pyiceberg.files import StructProtocol
 from pyiceberg.schema import Accessor, Schema
+from pyiceberg.typedef import L

Review Comment:
   Renaming the generic `T` to `L` requires a ton of changes and I'm not sure 
that it is worth doing. The only benefit is that we are getting a type bound on 
`T`, right?



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