Merge pull request #923 from enriquecatala/fix_apipeline_enqueue_docu…

…ments

fix apipeline_enqueue_documents

lightrag/lightrag.py

@@ -568,7 +568,7 @@ async def ainsert_custom_chunks(
                 await self._insert_done()
 
     async def apipeline_enqueue_documents(
-        self, input: str | list[str], ids: list[str] | None
+        self, input: str | list[str], ids: list[str] | None = None
     ) -> None:
         """
         Pipeline for Processing Documents