pylint max-attributes appears to be ratcheted down recently

Author: mattsb42-aws

src/aws_encryption_sdk/caches/__init__.py

@@ -143,6 +143,7 @@ class CryptoMaterialsCacheEntryHints(object):
 
 @attr.s(hash=False)
 class CryptoMaterialsCacheEntry(object):
+    # pylint: disable=too-many-instance-attributes
     """Value and metadata store for cryptographic materials cache entries.
 
     :param bytes cache_key: Identifier for entries in cache

src/aws_encryption_sdk/structures.py

@@ -20,6 +20,7 @@
 
 @attr.s(hash=True)
 class MessageHeader(object):
+    # pylint: disable=too-many-instance-attributes
     """Deserialized message header object.
 
     :param version: Message format version, per spec