Spell out the context-manager dunder argument types

Replace *args: Any catch-alls on __aexit__ in DqliteConnection and
ConnectionPool with the typed three-argument signature (exc_type,
exc_val, exc_tb). Runtime behaviour unchanged.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: antoineleclair

src/dqliteclient/connection.py

@@ -5,6 +5,7 @@
 import math
 from collections.abc import AsyncIterator, Awaitable, Callable, Sequence
 from contextlib import asynccontextmanager
+from types import TracebackType
 from typing import Any
 
 from dqliteclient.exceptions import (
@@ -225,7 +226,12 @@ async def __aenter__(self) -> "DqliteConnection":
         await self.connect()
         return self
 
-    async def __aexit__(self, *args: Any) -> None:
+    async def __aexit__(
+        self,
+        exc_type: type[BaseException] | None,
+        exc_val: BaseException | None,
+        exc_tb: TracebackType | None,
+    ) -> None:
         await self.close()
 
     def _ensure_connected(self) -> tuple[DqliteProtocol, int]:

src/dqliteclient/pool.py

@@ -5,6 +5,7 @@
 import logging
 from collections.abc import AsyncIterator, Sequence
 from contextlib import asynccontextmanager
+from types import TracebackType
 from typing import Any
 
 from dqliteclient.cluster import ClusterClient
@@ -567,5 +568,10 @@ async def __aenter__(self) -> "ConnectionPool":
         await self.initialize()
         return self
 
-    async def __aexit__(self, *args: Any) -> None:
+    async def __aexit__(
+        self,
+        exc_type: type[BaseException] | None,
+        exc_val: BaseException | None,
+        exc_tb: TracebackType | None,
+    ) -> None:
         await self.close()