core/homeassistant/components/hangouts/strings.json

{
    "config": {
        "abort": {
            "already_configured": "Google Hangouts is already configured",
            "unknown": "Unknown error occurred."
        },
        "error": {
            "invalid_login": "Invalid Login, please try again.",
            "invalid_2fa": "Invalid 2 Factor Authentication, please try again.",
            "invalid_2fa_method": "Invalid 2FA Method (Verify on Phone)."
        },
        "step": {
            "user": {
                "data": {
                    "email": "E-Mail Address",
                    "password": "Password",
                    "authorization_code":  "Authorization Code (required for manual authentication)"
                },
                "title": "Google Hangouts Login"
            },
            "2fa": {
                "data": {
                  "2fa": "2FA Pin"
                },
                "title": "2-Factor-Authentication"
            }
        },
        "title": "Google Hangouts"
    }
}