PowerArgs.CommandLineArgument.IsMatch C# (CSharp) Метод

        internal bool IsMatch(string key)
        {
            var ret = Aliases.Where(a => a.Equals(key, IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal)).Count() > 0;
            return ret;
        }

 internal bool TryGetAndRemoveAdditionalExplicitParameters(CommandLineArgument argument, out List <string> result)
 {
     foreach (var knownKey in AdditionalExplicitParameters.Keys)
     {
         if (argument.IsMatch(knownKey))
         {
             result = AdditionalExplicitParameters[knownKey];
             AdditionalExplicitParameters.Remove(knownKey);
             return(true);
         }
     }
     result = null;
     return(false);
 }