Fix some typing issues

src/dodal/devices/aperturescatterguard.py

@@ -196,12 +196,12 @@ def load_aperture_positions(self, positions: AperturePositions):
         self.aperture_positions = positions
 
     @AsyncStatus.wrap
-    async def set(self, pos: SingleAperturePosition):
+    async def set(self, value: SingleAperturePosition):
         assert isinstance(self.aperture_positions, AperturePositions)
-        if pos not in self.aperture_positions.as_list():
-            raise InvalidApertureMove(f"Unknown aperture: {pos}")
+        if value not in self.aperture_positions.as_list():
+            raise InvalidApertureMove(f"Unknown aperture: {value}")
 
-        await self._safe_move_within_datacollection_range(pos.location)
+        await self._safe_move_within_datacollection_range(value.location)
 
     def _get_motor_list(self):
         return [

src/dodal/devices/thawer.py

@@ -15,7 +15,7 @@ class ThawerStates(str, Enum):
     ON = "On"
 
 
-class ThawingTimer(Device):
+class ThawingTimer(Device, Stoppable):
     def __init__(self, control_signal: SignalRW[ThawerStates]) -> None:
         self._control_signal = control_signal
         self._thawing_task: Task | None = None
@@ -33,7 +33,7 @@ async def set(self, time_to_thaw_for: float):
             await self._control_signal.set(ThawerStates.OFF)
 
     @AsyncStatus.wrap
-    async def stop(self, *args):
+    async def stop(self, *args, **kwargs):
         if self._thawing_task:
             self._thawing_task.cancel()
 
@@ -45,6 +45,6 @@ def __init__(self, prefix: str, name: str = "") -> None:
         super().__init__(name)
 
     @AsyncStatus.wrap
-    async def stop(self, *args):
+    async def stop(self, *args, **kwargs):
         await self.thaw_for_time_s.stop()
         await self.control.set(ThawerStates.OFF)