diff --git a/volatility3/framework/symbols/windows/extensions/gui.py b/volatility3/framework/symbols/windows/extensions/gui.py
index 48ec2eba4..f811f4313 100644
--- a/volatility3/framework/symbols/windows/extensions/gui.py
+++ b/volatility3/framework/symbols/windows/extensions/gui.py
@@ -14,6 +14,7 @@ from volatility3.framework.symbols.windows.extensions import pool
 
 vollog = logging.getLogger(__name__)
 
+
 class GUIExtensions(interfaces.configuration.VersionableInterface):
     _version = (1, 0, 0)
     _required_framework_version = (2, 0, 0)
@@ -83,14 +84,13 @@ class GUIExtensions(interfaces.configuration.VersionableInterface):
 
                 seen.add(desktop.vol.offset)
 
-
     class tagDESKTOP(objects.StructType, pool.ExecutiveObject):
         def is_valid(self) -> bool:
             """
             Enforce a valid session ID and Window station
             We aren't interested in terminated desktops as there are so many pointers
             going from station -> desktop -> windows, that we would just be processing junk.
-            Even if the pointers were still in tact by some miracle, its not that helpful to 
+            Even if the pointers were still in tact by some miracle, its not that helpful to
             have a floating desktop appear in the output as you can't do much with it.
             """
             sid = self.get_session_id()
@@ -102,7 +102,7 @@ class GUIExtensions(interfaces.configuration.VersionableInterface):
 
             return False
 
-        def get_window_station(self) -> Optional["tagWINDOWSTATION"]:
+        def get_window_station(self) -> Optional["GUIExtensions.tagWINDOWSTATION"]:
             """
             Attempts to return the window station for this desktop
             """
@@ -133,7 +133,9 @@ class GUIExtensions(interfaces.configuration.VersionableInterface):
                 symbol_table_name + constants.BANG + "tagTHREADINFO", "PtiLink"
             ):
                 try:
-                    process_name = utility.array_to_string(thread.ppi.Process.ImageFileName)
+                    process_name = utility.array_to_string(
+                        thread.ppi.Process.ImageFileName
+                    )
                     process_pid = thread.ppi.Process.UniqueProcessId
                 except exceptions.InvalidAddressException:
                     continue
@@ -217,7 +219,6 @@ class GUIExtensions(interfaces.configuration.VersionableInterface):
                 if len(seen_windows) == max_windows:
                     break
 
-
     class tagWND(objects.StructType, pool.ExecutiveObject):
 
         def is_valid(self) -> bool:
@@ -297,10 +298,11 @@ class GUIExtensions(interfaces.configuration.VersionableInterface):
                 else:
                     return self.lpfnWndProc
             except exceptions.InvalidAddressException:
-                vollog.debug(f"Invalid window procedure for window {self.vol.offset:#x}")
+                vollog.debug(
+                    f"Invalid window procedure for window {self.vol.offset:#x}"
+                )
                 return None
 
-
     # This is copy/paste from UNICODE_STRING in `symbols/windows/extensions/__init__.py`
     # The versioning of modules would get very ugly if we let different modules share implementations
     # across different data structures