diff --git a/pyproject.toml b/pyproject.toml
index 978d7d14d71..8fad0c87bda 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,6 @@ ignore = [
     # these ignores are from RUFF perf; please fix!
     "PERF203", "PERF4",
     "PYI001", # these ignores are from PYI; please fix!
-    "PYI018",
     "PYI019",
     "PYI024",
     "PYI034",
diff --git a/torchgen/api/types/types.py b/torchgen/api/types/types.py
index 693623f973c..f845c6a90a2 100644
--- a/torchgen/api/types/types.py
+++ b/torchgen/api/types/types.py
@@ -13,7 +13,7 @@ Add new types to `types.py` if these types are ATen/c10 related.
 Add new types to `types_base.py` if they are basic and not attached to ATen/c10.
 """
 from dataclasses import dataclass
-from typing import Dict, TypeVar
+from typing import Dict
 
 from torchgen.model import BaseTy, ScalarType
 
@@ -31,7 +31,6 @@ from .types_base import (
     shortT,
 )
 
-_T = TypeVar("_T")
 
 TENSOR_LIST_LIKE_CTYPES = [
     "at::TensorList",