Fix type annotation in `create_table_comment`

The `existing_comment` parameter had type `None`, but it should be `Optional[str]`.

diff --git a/alembic/op.pyi b/alembic/op.pyi
index 490d714614fcbd53f9f457f2987f22864779b8a1..d7e404b68e59c06e49e39852dc8750394f3e826a 100644 (file)
--- a/alembic/op.pyi
+++ b/alembic/op.pyi
@@ -751,7 +751,7 @@ def create_table(
 def create_table_comment(
     table_name: str,
     comment: Optional[str],
-    existing_comment: None = None,
+    existing_comment: Optional[str] = None,
     schema: Optional[str] = None,
 ) -> Optional[Table]:
     """Emit a COMMENT ON operation to set the comment for a table.