def delete(self, key: str, collection: str = DEFAULT_COLLECTION) -> bool:
        """
        Delete a value from the store.

        Args:
            key (str): key
            collection (str): collection name

        """
        return asyncio.get_event_loop().run_until_complete(
            self.adelete(key, collection)
        )

        Delete a value from the store.

        Args:
            key (str): key
            collection (str): collection name

        
llama-index-integrations/storage/kvstore/llama-index-storage-kvstore-elasticsearch/llama_index/storage/kvstore/elasticsearch/base.py