private static List <SyntaxNodeOrToken> CreateWcfArguments(SeparatedSyntaxList <ParameterSyntax> wcfParameters)
        {
            var arguments = wcfParameters
                            // add arguments using wcf method parameters
                            .Select(parameter =>
            {
                var argument = SyntaxFactory.Argument(SyntaxFactory.IdentifierName(parameter.Identifier));

                // add 'out' keyword if param has it
                var hasOutKeyword = OutKeywordGenerator.HasOutKeyword(parameter);
                argument          = hasOutKeyword
                        ? OutKeywordGenerator.AddOutKeywordToArgument(argument)
                        : argument;

                return(argument);
            })
                            // add commas
                            .SelectMany(param => new SyntaxNodeOrToken[]
            {
                param,
                SyntaxFactory.Token(SyntaxKind.CommaToken)
            })
                            // remove last trailing comma
                            .Take(wcfParameters.Count * 2 - 1)
                            .ToList();

            return(arguments);
        }