Support a more obvious non-cached connection check

matrix_appservice_kakaotalk/commands/conn.py

@@ -63,7 +63,7 @@ async def ping(evt: CommandEvent) -> None:
     if not await evt.sender.is_logged_in():
         await evt.reply("You are **logged out** of KakaoTalk.")
     else:
-        is_connected = evt.sender.is_connected and await evt.sender.client.is_connected()
+        is_connected = await evt.sender.is_connected_now()
         await evt.reply(
              "You are logged into KakaoTalk.\n\n"
             f"You are {'connected to' if is_connected else '**disconnected** from'} KakaoTalk chats."

matrix_appservice_kakaotalk/user.py

@@ -177,6 +177,9 @@ class User(DBUser, BaseUser):
             self._is_connected = val
             self._connection_time = time.monotonic()
 
+    async def is_connected_now(self) -> bool:
+        return self._client is not None and await self._client.is_connected()
+
     @property
     def connection_time(self) -> float:
         return self._connection_time