public void ToJson(IJsonBuilder builder, MyType target)
 {
 }
 public void ToJson(IJsonBuilder builder, DateTime target)
 {
     builder.Append("\"");
     builder.Append(target.ToString());
     builder.Append("\"");
 }
 public void ToJson(IJsonBuilder builder, string target)
 {
     builder.Append("\"");
     builder.Append(target.ToUpper());
     builder.Append("\"");
 }