void main(){
    var tJson = new JsonTransitCodec();
    
    tJson.encode([1, true, "It is working", new TransitKeyword("x")]);
    tJson.decode('[1, true, "It is working", "~:x"]');
    
    tJson.encoder.register(new MyClassHandler());
    tJson.encode(new MyClass("Some_Data"));
    
    tJson.decoder.register("my_tag",(data) => new MyClass(data));
    tJson.decode('["~#my_tag","Some_Data"]');
}
class MyClass{
    var data;
    MyClass(this.data);
}
class MyClassHandler extends WriteHandler<MyClass>{
    String tag(MyClass obj) => "my_tag";
    rep(MyClass obj) => obj.data;
}