def delete(self, ref_doc_id: str, **delete_kwargs: Any) -> None:
        """
        Delete nodes using with ref_doc_id.

        Args:
            ref_doc_id (str): The doc_id of the document to delete.

        """
        self._client.delete(
            table_name=self._table_name,
            where_clause=[text(f"{self._doc_id_field}='{ref_doc_id}'")],
        )

        Delete nodes using with ref_doc_id.

        Args:
            ref_doc_id (str): The doc_id of the document to delete.

        
llama-index-integrations/vector_stores/llama-index-vector-stores-oceanbase/llama_index/vector_stores/oceanbase/base.py