Improve CastProtocol (#65357)

* Improve CastProtocol

* Tweak

homeassistant/components/cast/__init__.py

@@ -67,7 +67,7 @@ class CastProtocol(Protocol):
     """Define the format of cast platforms."""
 
     async def async_get_media_browser_root_object(
-        self, cast_type: str
+        self, hass: HomeAssistant, cast_type: str
     ) -> list[BrowseMedia]:
         """Create a list of root objects for media browsing."""
 

homeassistant/components/cast/media_player.py

@@ -463,7 +463,7 @@ class CastDevice(MediaPlayerEntity):
         for platform in self.hass.data[CAST_DOMAIN].values():
             children.extend(
                 await platform.async_get_media_browser_root_object(
-                    self._chromecast.cast_type
+                    self.hass, self._chromecast.cast_type
                 )
             )
 

homeassistant/components/plex/cast.py

@@ -14,7 +14,9 @@ from .const import PLEX_URI_SCHEME
 from .services import lookup_plex_media
 
 
-async def async_get_media_browser_root_object(cast_type: str) -> list[BrowseMedia]:
+async def async_get_media_browser_root_object(
+    hass: HomeAssistant, cast_type: str
+) -> list[BrowseMedia]:
     """Create a root object for media browsing."""
     return [
         BrowseMedia(