ESPHome enable static type checking (#52348)

homeassistant/components/esphome/binary_sensor.py

@@ -4,11 +4,16 @@ from __future__ import annotations
 from aioesphomeapi import BinarySensorInfo, BinarySensorState
 
 from homeassistant.components.binary_sensor import BinarySensorEntity
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
 from . import EsphomeEntity, platform_async_setup_entry
 
 
-async def async_setup_entry(hass, entry, async_add_entities):
+async def async_setup_entry(
+    hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
+) -> None:
     """Set up ESPHome binary sensors based on a config entry."""
     await platform_async_setup_entry(
         hass,
@@ -21,17 +26,15 @@ async def async_setup_entry(hass, entry, async_add_entities):
     )
 
 
-class EsphomeBinarySensor(EsphomeEntity, BinarySensorEntity):
+# Pylint gets confused with the EsphomeEntity generics -> let mypy handle member checking
+# pylint: disable=no-member
+
+
+class EsphomeBinarySensor(
+    EsphomeEntity[BinarySensorInfo, BinarySensorState], BinarySensorEntity
+):
     """A binary sensor implementation for ESPHome."""
 
-    @property
-    def _static_info(self) -> BinarySensorInfo:
-        return super()._static_info
-
-    @property
-    def _state(self) -> BinarySensorState | None:
-        return super()._state
-
     @property
     def is_on(self) -> bool | None:
         """Return true if the binary sensor is on."""
@@ -39,7 +42,7 @@ class EsphomeBinarySensor(EsphomeEntity, BinarySensorEntity):
             # Status binary sensors indicated connected state.
             # So in their case what's usually _availability_ is now state
             return self._entry_data.available
-        if self._state is None:
+        if not self._has_state:
             return None
         if self._state.missing_state:
             return None