use is_name_token to resolve type:ignore

src/black/linegen.py

@@ -25,7 +25,7 @@
 from black.mode import Mode
 from black.mode import Feature
 
-from blib2to3.pytree import Node, Leaf
+from blib2to3.pytree import Node, Leaf, is_name_token
 from blib2to3.pgen2 import token
 
 
@@ -137,7 +137,7 @@ def visit_stmt(
         """
         normalize_invisible_parens(node, parens_after=parens)
         for child in node.children:
-            if child.type == token.NAME and child.value in keywords:  # type: ignore
+            if is_name_token(child) and child.value in keywords:
                 yield from self.line()
 
             yield from self.visit(child)

src/blib2to3/pytree.py

@@ -25,7 +25,12 @@
     Set,
     Iterable,
 )
+if sys.version_info >= (3, 10):
+    from typing import TypeGuard
+else:
+    from typing_extensions import TypeGuard
 from blib2to3.pgen2.grammar import Grammar
+from blib2to3.pgen2 import token
 
 __author__ = "Guido van Rossum <[email protected]>"
 
@@ -978,3 +983,7 @@ def generate_matches(
                     r.update(r0)
                     r.update(r1)
                     yield c0 + c1, r
+
+
+def is_name_token(nl: NL) -> TypeGuard[Leaf]:
+    return nl.type == token.NAME