Dart Converting Data

import 'dart:convert';
 void main() {
 var jsonString = """
 {
 "cats": {
 "abysinnian": {
 "origin": "Burma",
 "behavior": "playful"
 }
 }
 }
 """;
 var obj = JSON.decode(jsonString);
 print(obj['cats']['abysinnian']['behavior']); // playful
 }

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