public IEnumerable <Type> GetPlugins()
        {
            var fileInfos = _machineInfo.GetFileList($"{_opts.PluginsDirectory}\\**\\*\\.(exe|dll)").ToList();


            if (!Directory.Exists(_opts.PluginsDirectory) || !fileInfos.Any())
            {
                return(new List <Type>());
            }


            var assemblies = fileInfos.Select(q => Assembly.LoadFile(q.FullName));

            var pluginTypes = from a in assemblies
                              from t in a.GetExportedTypes()
                              where typeof(IDiagnosticRenderer).IsAssignableFrom(t)
                              select t;

            return(pluginTypes);
        }