diff --git a/salt_tower/pillar/tower.py b/salt_tower/pillar/tower.py
index 9cd9bb9..1a26923 100644
--- a/salt_tower/pillar/tower.py
+++ b/salt_tower/pillar/tower.py
@@ -11,7 +11,7 @@
 import os
 import string
 from glob import glob
-from typing import TYPE_CHECKING, Any, Dict
+from typing import TYPE_CHECKING, Any, Dict, NamedTuple
 
 import salt.loader
 import salt.minion
@@ -68,16 +68,15 @@ def ext_pillar(minion_id, pillar, *args, **_kwargs):
     return dict(tower)
 
 
-class Optional:
-    def __init__(self, pattern):
-        self.pattern = pattern
+class Optional(NamedTuple):
+    pattern: str
 
 
 def _yamlet_construct_optional(_loader, node):
     if isinstance(node, ScalarNode):
         return Optional(node.value)
 
-    raise ConstructorError(
+    raise ConstructorError( #pylint: disable=duplicate-code
         None,
         None,
         f"expected a scalar node, but found {node.id}",
diff --git a/salt_tower/renderers/yamlet.py b/salt_tower/renderers/yamlet.py
index c222537..fa163b6 100644
--- a/salt_tower/renderers/yamlet.py
+++ b/salt_tower/renderers/yamlet.py
@@ -21,14 +21,15 @@
 import salt.template
 from salt.utils.odict import OrderedDict
 from salt.utils.yamlloader import SaltYamlSafeLoader, load
-from yaml.constructor import ConstructorError
-from yaml.nodes import MappingNode, ScalarNode
 
 try:
     from salt.utils.files import fopen
 except ImportError:
     from salt.utils import fopen
 
+from yaml.constructor import ConstructorError
+from yaml.nodes import MappingNode, ScalarNode
+
 
 class YamletLoader(SaltYamlSafeLoader):  # pylint: disable=too-many-ancestors
     def __init__(self, stream, renderers, context=None, tmplpath=None, **kwargs):