Don't expose attribute option in state selector (#77347)

homeassistant/helpers/selector.py

@@ -781,7 +781,6 @@ class StateSelectorConfig(TypedDict, total=False):
     """Class to represent an state selector config."""
 
     entity_id: str
-    attribute: str
 
 
 @SELECTORS.register("state")
@@ -793,7 +792,11 @@ class StateSelector(Selector):
     CONFIG_SCHEMA = vol.Schema(
         {
             vol.Required("entity_id"): cv.entity_id,
-            vol.Optional("attribute"): str,
+            # The attribute to filter on, is currently deliberately not
+            # configurable/exposed. We are considering separating state
+            # selectors into two types: one for state and one for attribute.
+            # Limiting the public use, prevents breaking changes in the future.
+            # vol.Optional("attribute"): str,
         }
     )
 

tests/helpers/test_selector.py

@@ -322,11 +322,6 @@ def test_time_selector_schema(schema, valid_selections, invalid_selections):
             ("on", "armed"),
             (None, True, 1),
         ),
-        (
-            {"entity_id": "sensor.abc", "attribute": "device_class"},
-            ("temperature", "humidity"),
-            (None,),
-        ),
     ),
 )
 def test_state_selector_schema(schema, valid_selections, invalid_selections):