chore(internal): avoid lint errors in pagination expressions

Author: stainless-app[bot]

src/arcadepy/pagination.py

@@ -26,7 +26,7 @@ def _get_page_items(self) -> List[_T]:
     def next_page_info(self) -> Optional[PageInfo]:
         offset = self.offset
         if offset is None:
-            return None
+            return None  # type: ignore[unreachable]
 
         length = len(self._get_page_items())
         current_count = offset + length
@@ -57,7 +57,7 @@ def _get_page_items(self) -> List[_T]:
     def next_page_info(self) -> Optional[PageInfo]:
         offset = self.offset
         if offset is None:
-            return None
+            return None  # type: ignore[unreachable]
 
         length = len(self._get_page_items())
         current_count = offset + length