metadb.py 文件源码

def get_meta(self, lookup_key, key):
        """
        Retrieve the meta data for a given key
        Args:
            lookup_key: Key for the object requested
            key: Metadata key

        Returns:

        """

        response = self.table.get_item(
            Key={
                'lookup_key': lookup_key,
                'key': key,
            }
        )
        if 'Item' in response:
            return response['Item']
        else:
            return None