Allow callable coroutines for feature setters (#1272)

kasa/feature.py

@@ -71,7 +71,7 @@ import logging
 from dataclasses import dataclass
 from enum import Enum, auto
 from functools import cached_property
-from typing import TYPE_CHECKING, Any, Callable
+from typing import TYPE_CHECKING, Any, Callable, Coroutine
 
 if TYPE_CHECKING:
     from .device import Device
@@ -136,10 +136,10 @@ class Feature:
     name: str
     #: Type of the feature
     type: Feature.Type
-    #: Name of the property that allows accessing the value
+    #: Callable or name of the property that allows accessing the value
     attribute_getter: str | Callable | None = None
-    #: Name of the method that allows changing the value
-    attribute_setter: str | None = None
+    #: Callable coroutine or name of the method that allows changing the value
+    attribute_setter: str | Callable[..., Coroutine[Any, Any, Any]] | None = None
     #: Container storing the data, this overrides 'device' for getters
     container: Any = None
     #: Icon suggestion
@@ -258,11 +258,16 @@ class Feature:
                     f" - allowed: {self.choices}"
                 )
 
+        if callable(self.attribute_setter):
+            attribute_setter = self.attribute_setter
+        else:
             container = self.container if self.container is not None else self.device
-        if self.type == Feature.Type.Action:
-            return await getattr(container, self.attribute_setter)()
+            attribute_setter = getattr(container, self.attribute_setter)
 
-        return await getattr(container, self.attribute_setter)(value)
+        if self.type == Feature.Type.Action:
+            return await attribute_setter()
+
+        return await attribute_setter(value)
 
     def __repr__(self) -> str:
         try: