diff --git a/src/utils/notebook.ts b/src/utils/notebook.ts
index 3630b09..f4a669f 100644
--- a/src/utils/notebook.ts
+++ b/src/utils/notebook.ts
@@ -222,3 +222,4 @@ export function parseCellId(cellId: string): number | undefined {
   }
   return undefined
 }
+