Can you also add json snippets?

[sujith-simon]

I really like this repo and wanted to see more snippets added.
something like the below will help a lot.

class MyClass {
  .....
  ...

  Map<String,dynamic> toJson(){
  ....
  return map;
  }

  MyClass fromJson(Map<String,dynamic> map){
  ....
  return myClass;
  }
}