diff --git a/libs/core/langchain_core/indexing/api.py b/libs/core/langchain_core/indexing/api.py
index 60d4ed134c0..616a62bf6fa 100644
--- a/libs/core/langchain_core/indexing/api.py
+++ b/libs/core/langchain_core/indexing/api.py
@@ -647,9 +647,12 @@ async def aindex(
                 )
                 raise ValueError(msg)
 
-        if type(destination).adelete == VectorStore.adelete and type(destination).delete == VectorStore.delete:
-            # Checking if the vectorstore has overridden the default adelete or delete methods
-            # implementation which just raises a NotImplementedError
+        if (
+            type(destination).adelete == VectorStore.adelete
+            and type(destination).delete == VectorStore.delete
+        ):
+            # Checking if the vectorstore has overridden the default adelete or delete
+            # methods implementation which just raises a NotImplementedError
             msg = "Vectorstore has not implemented the adelete or delete method"
             raise ValueError(msg)
     elif isinstance(destination, DocumentIndex):