public static void _showCoreInstallerWindow()
    {
        if (!SessionState.GetBool(_shouldShowWindowKey, false))
        {
            return;
        }

        SessionState.EraseBool(_shouldShowWindowKey);
        OneSignalSetupWindow.ShowWindow();
    }
    private static void _showOpenSetupDialog()
    {
        var dialogResult = EditorUtility.DisplayDialog(
            "OneSignal",
            "The project contains an outdated version of OneSignal SDK! We recommend running the OneSignal SDK Setup.",
            "Open SDK Setup",
            "Cancel"
            );

        if (dialogResult)
        {
            OneSignalSetupWindow.ShowWindow();
        }
    }