private ActionModel DownloadActionList()
        {
            this.AppendLineMessages("Download Action.");

            var model = new ActionModel();

            model.WriteLogLineAction = this.AppendLineMessages;

            // XIVDB からActionのリストを取得する
            this.AppendLineMessages("Download Action list.");
            model.GET(this.viewModel.Language);

            // 取得したリストをCSVに保存する
            this.AppendLineMessages("Save to CSV.");
            model.SaveToCSV(
                Path.Combine(this.viewModel.SaveDirectory, $"Action.{this.viewModel.Language.ToText()}.csv"));

            this.AppendLineMessages("Download Action, Done.");

            return(model);
        }