def get(self, key: str, collection: str = DEFAULT_COLLECTION) -> Optional[dict]:
        """
        Get a value from the store.

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

        """
        val_str = self._redis_client.hget(name=collection, key=key)
        if val_str is None:
            return None
        return json.loads(val_str)

        Get a value from the store.

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

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