Move feature initialization from __init__ to _initialize_features (#1140)

kasa/smart/modules/contactsensor.py

@@ -2,14 +2,9 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
-
 from ...feature import Feature
 from ..smartmodule import SmartModule
 
-if TYPE_CHECKING:
-    from ..smartdevice import SmartDevice
-
 
 class ContactSensor(SmartModule):
     """Implementation of contact sensor module."""
@@ -17,11 +12,11 @@ class ContactSensor(SmartModule):
     REQUIRED_COMPONENT = None  # we depend on availability of key
     REQUIRED_KEY_ON_PARENT = "open"
 
-    def __init__(self, device: SmartDevice, module: str):
-        super().__init__(device, module)
+    def _initialize_features(self):
+        """Initialize features after the initial update."""
         self._add_feature(
             Feature(
-                device,
+                self._device,
                 id="is_open",
                 name="Open",
                 container=self,