After reading gatt characteristic by aioble, is it necessary to disconnect by hand?

[rivendell1984]

Hello,
I'm using aioble like the sample, and I want to disconnect immediately after reading the value.

    try:
        connection = await device.connect()
    except asyncio.TimeoutError:
        print("Timeout during connection")
        return

    async with connection:
        try:
            temp_service = await connection.service(_ENV_SENSE_UUID)
            temp_characteristic = await temp_service.characteristic(_ENV_SENSE_TEMP_UUID)
            temp = await temp_characteristic.read()
        except asyncio.TimeoutError:
            print("Timeout discovering services/characteristics")
            return

    #is it necessary to disconnect it like this? 
    try:
        await connection.disconnect(timeout_ms=1000)
     except asyncio.TimeoutError:
         print("Timeout disconnected services/characteristics")
        return

When I use await connection.disconnect(timeout_ms=1000), I always get TimeoutError
So, what's the good way to disconnect immediately?