diff --git a/pyvlx/node_helper.py b/pyvlx/node_helper.py
index 369b5b2f..9af4f462 100644
--- a/pyvlx/node_helper.py
+++ b/pyvlx/node_helper.py
@@ -3,23 +3,15 @@
 
 from .api.frames import (
     FrameGetAllNodesInformationNotification,
-    FrameGetNodeInformationNotification,
-)
+    FrameGetNodeInformationNotification)
 from .const import NodeTypeWithSubtype
 from .lightening_device import Light
 from .log import PYVLXLOG
 from .node import Node
 from .on_off_switch import OnOffSwitch
 from .opening_device import (
-    Awning,
-    Blade,
-    Blind,
-    DualRollerShutter,
-    GarageDoor,
-    Gate,
-    RollerShutter,
-    Window,
-)
+    Awning, Blade, Blind, DualRollerShutter, GarageDoor, Gate, RollerShutter,
+    Window)
 
 if TYPE_CHECKING:
     from pyvlx import PyVLX
diff --git a/pyvlx/node_updater.py b/pyvlx/node_updater.py
index 96c1b4a8..a111036c 100644
--- a/pyvlx/node_updater.py
+++ b/pyvlx/node_updater.py
@@ -3,11 +3,8 @@
 from typing import TYPE_CHECKING, Any
 
 from .api.frames import (
-    FrameBase,
-    FrameGetAllNodesInformationNotification,
-    FrameNodeStatePositionChangedNotification,
-    FrameStatusRequestNotification,
-)
+    FrameBase, FrameGetAllNodesInformationNotification,
+    FrameNodeStatePositionChangedNotification, FrameStatusRequestNotification)
 from .const import NodeParameter, OperatingState
 from .lightening_device import LighteningDevice
 from .log import PYVLXLOG
diff --git a/pyvlx/parameter.py b/pyvlx/parameter.py
index feb1b509..808bb103 100644
--- a/pyvlx/parameter.py
+++ b/pyvlx/parameter.py
@@ -165,8 +165,7 @@ def __str__(self) -> str:
             return "ON"
         if self.raw == self.from_int(Parameter.OFF):
             return "OFF"
-        
-            return "UNKNOWN"
+        return "UNKNOWN"
 
 
 class SwitchParameterOn(SwitchParameter):