Add new methods to DeviceAutomationTriggerProtocol (#72168)

* Add composite type

* Add new methods to DeviceAutomationTriggerProtocol

homeassistant/components/device_automation/trigger.py

@@ -1,4 +1,7 @@
 """Offer device oriented automation."""
+from __future__ import annotations
+
+from collections.abc import Awaitable
 from typing import Protocol, cast
 
 import voluptuous as vol
@@ -14,6 +17,8 @@ from homeassistant.helpers.typing import ConfigType
 from . import (
     DEVICE_TRIGGER_BASE_SCHEMA,
     DeviceAutomationType,
+    GetAutomationCapabilitiesResult,
+    GetAutomationsResult,
     async_get_device_automation_platform,
 )
 from .exceptions import InvalidDeviceAutomationConfig
@@ -33,7 +38,6 @@ class DeviceAutomationTriggerProtocol(Protocol):
         self, hass: HomeAssistant, config: ConfigType
     ) -> ConfigType:
         """Validate config."""
-        raise NotImplementedError
 
     async def async_attach_trigger(
         self,
@@ -43,7 +47,16 @@ class DeviceAutomationTriggerProtocol(Protocol):
         automation_info: AutomationTriggerInfo,
     ) -> CALLBACK_TYPE:
         """Attach a trigger."""
-        raise NotImplementedError
+
+    def async_get_trigger_capabilities(
+        self, hass: HomeAssistant, config: ConfigType
+    ) -> GetAutomationCapabilitiesResult | Awaitable[GetAutomationCapabilitiesResult]:
+        """List trigger capabilities."""
+
+    def async_get_triggers(
+        self, hass: HomeAssistant, device_id: str
+    ) -> GetAutomationsResult | Awaitable[GetAutomationsResult]:
+        """List triggers."""
 
 
 async def async_validate_trigger_config(