named tuple for cached media id

src/aiogram_dialog/context/media_storage.py

@@ -1,5 +1,5 @@
 import os
-from typing import Optional
+from typing import NamedTuple, Optional, cast
 
 from aiogram.types import ContentType
 from cachetools import LRUCache
@@ -8,6 +8,11 @@
 from aiogram_dialog.api.protocols import MediaIdStorageProtocol
 
 
+class CachedMediaId(NamedTuple):
+    media_id: MediaId
+    mtime: Optional[float]
+
+
 class MediaIdStorage(MediaIdStorageProtocol):
     def __init__(self, maxsize=10240):
         self.cache = LRUCache(maxsize=maxsize)
@@ -20,14 +25,18 @@ async def get_media_id(
     ) -> Optional[MediaId]:
         if not path and not url:
             return None
-        cached = self.cache.get((path, url, type))
+        cached = cast(
+            Optional[CachedMediaId],
+            self.cache.get((path, url, type)),
+        )
         if cached is None:
             return None
-        if cached[1] is not None:
+
+        if cached.mtime is not None:
             mtime = self._get_file_mtime(path)
-            if mtime is not None and mtime != cached[1]:
+            if mtime is not None and mtime != cached.mtime:
                 return None
-        return cached[0]
+        return cached.media_id
 
     def _get_file_mtime(self, path: Optional[str]) -> Optional[float]:
         if not path:
@@ -45,4 +54,7 @@ async def save_media_id(
     ) -> None:
         if not path and not url:
             return
-        self.cache[(path, url, type)] = (media_id, self._get_file_mtime(path))
+        self.cache[(path, url, type)] = CachedMediaId(
+            media_id,
+            self._get_file_mtime(path),
+        )