IronPython.Compiler.Parser.CheckUniqueParameter C# (CSharp) Метод

        private void CheckUniqueParameter(HashSet<string> names, string name) {
            if (names.Contains(name)) {
                ReportSyntaxError(String.Format(
                    System.Globalization.CultureInfo.InvariantCulture,
                    Resources.DuplicateArgumentInFuncDef,
                    name));
            }
            names.Add(name);
        }