core/homeassistant/components/trafikverket_train/translations/sv.json

{
    "config": {
        "step": {
            "reauth_confirm": {
                "data": {
                    "api_key": "API-nyckel"
                }
            },
            "user": {
                "data": {
                    "api_key": "API-nyckel"
                }
            }
        }
    }
}