Improve sonos typing (#78661)

homeassistant/components/sonos/favorites.py

@@ -32,7 +32,7 @@ class SonosFavorites(SonosHouseholdCoordinator):
         self._favorites: list[DidlFavorite] = []
         self.last_polled_ids: dict[str, int] = {}
 
-    def __iter__(self) -> Iterator:
+    def __iter__(self) -> Iterator[DidlFavorite]:
         """Return an iterator for the known favorites."""
         favorites = self._favorites.copy()
         return iter(favorites)

homeassistant/components/sonos/media_browser.py

@@ -7,13 +7,17 @@ from functools import partial
 import logging
 from typing import cast
 
-from soco.data_structures import DidlFavorite, DidlObject
+from soco.data_structures import DidlObject
 from soco.ms_data_structures import MusicServiceItem
 from soco.music_library import MusicLibrary
 
 from homeassistant.components import media_source, plex, spotify
-from homeassistant.components.media_player import BrowseMedia, MediaClass, MediaType
+from homeassistant.components.media_player import (
-from homeassistant.components.media_player.errors import BrowseError
+    BrowseError,
+    BrowseMedia,
+    MediaClass,
+    MediaType,
+)
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.network import is_internal_request
 
@@ -32,6 +36,7 @@ from .const import (
     SONOS_TYPES_MAPPING,
 )
 from .exception import UnknownMediaType
+from .favorites import SonosFavorites
 from .speaker import SonosMedia, SonosSpeaker
 
 _LOGGER = logging.getLogger(__name__)
@@ -363,15 +368,15 @@ def library_payload(media_library: MusicLibrary, get_thumbnail_url=None) -> Brow
     )
 
 
-def favorites_payload(favorites: list[DidlFavorite]) -> BrowseMedia:
+def favorites_payload(favorites: SonosFavorites) -> BrowseMedia:
     """
     Create response payload to describe contents of a specific library.
 
     Used by async_browse_media.
     """
-    children = []
+    children: list[BrowseMedia] = []
 
-    group_types = {fav.reference.item_class for fav in favorites}
+    group_types: set[str] = {fav.reference.item_class for fav in favorites}
     for group_type in sorted(group_types):
         try:
             media_content_type = SONOS_TYPES_MAPPING[group_type]
@@ -402,13 +407,13 @@ def favorites_payload(favorites: list[DidlFavorite]) -> BrowseMedia:
 
 
 def favorites_folder_payload(
-    favorites: list[DidlFavorite], media_content_id: str
+    favorites: SonosFavorites, media_content_id: str
 ) -> BrowseMedia:
     """Create response payload to describe all items of a type of favorite.
 
     Used by async_browse_media.
     """
-    children = []
+    children: list[BrowseMedia] = []
     content_type = SONOS_TYPES_MAPPING[media_content_id]
 
     for favorite in favorites:

homeassistant/components/sonos/speaker.py

@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 import asyncio
-from collections.abc import Callable, Coroutine
+from collections.abc import Callable, Collection, Coroutine
 import contextlib
 import datetime
 from functools import partial
@@ -946,7 +946,7 @@ class SonosSpeaker:
     ) -> None:
         """Snapshot all the speakers and optionally their groups."""
 
-        def _snapshot_all(speakers: list[SonosSpeaker]) -> None:
+        def _snapshot_all(speakers: Collection[SonosSpeaker]) -> None:
             """Sync helper."""
             for speaker in speakers:
                 speaker.snapshot(with_group)
@@ -1032,7 +1032,7 @@ class SonosSpeaker:
 
             return groups
 
-        def _restore_players(speakers: list[SonosSpeaker]) -> None:
+        def _restore_players(speakers: Collection[SonosSpeaker]) -> None:
             """Restore state of all players."""
             for speaker in (s for s in speakers if not s.is_coordinator):
                 speaker.restore()