private static void AddSignature(Control parent, JsonRpcMethod method)
        {
            Control methodSignatureSpan = AddSpan(parent, "method-sig", null);
            AddSpan(methodSignatureSpan, "method-param-open", "(");
    
            JsonRpcParameter[] parameters = method.GetParameters();
            foreach (JsonRpcParameter parameter in parameters)
            {
                if (parameter.Position > 0)
                    AddSpan(methodSignatureSpan, "method-param-delim", ", ");

                AddSpan(methodSignatureSpan, "method-param", parameter.Name);
            }
    
            AddSpan(methodSignatureSpan, "method-param-close", ")");
        }