public string GetUsage(ICommandLineOptionMode[] availableModes)
 {
     var helpText = new HelpText
     {
         AddDashesToOption = true
     };
     var usageLines = availableModes.Select(mode => $"ReportUnit {mode.Usage()} <options>");
     helpText.AddPreOptionsLines(usageLines);
     helpText.AddOptions(this);
     return helpText;
 }
 public CommandLineOptionsParserService(ICommandLineOptionMode[] modes)
 {
     _modes = modes;
 }