System.Linq.Expressions.Expression.GetArgTypesString C# (CSharp) Method

        private static string GetArgTypesString(Expression[] arguments)
        {
            StringBuilder argTypesStr = new StringBuilder();
            argTypesStr.Append('(');
            for (int i = 0; i < arguments.Length; i++)
            {
                if (i != 0)
                {
                    argTypesStr.Append(", ");
                }
                argTypesStr.Append(arguments[i].Type.Name);
            }
            argTypesStr.Append(')');
            return argTypesStr.ToString();
        }