title: How to ignore the keys of dynamic response of json object in retrofit 2.0
body: <p>How to ignore the keys of json which are missing for response of two different users using retrofit 2.0 and gson.</p>
  
  <p>This is the json response for existing user.</p>
  
  <pre><code>{ 
     "details" :{
         "userId" : "548sdry5687rtyde346asf",
          "email: "avc@zxc.com",
          "name":{
            "first":"Jhon",
            "last": "Madan",
            "_id":"69874154sdfadg58dfa245"},
            "gender":"male",
            "location":{
                "address":"12547",
                "city":"delhi",
                "state":"Delhi"
            }
       }
  }
  </code></pre>
  
  <p>This is the response for new user</p>
  
  <pre><code>{
      "details":{
          "userId":"1258afafg287fae23sf",
          "email": "qwea@gmail.com",
          "name":{
                "first":"Mohan",
                "last":"mehar",
                "_id":"kdg2467edfdfh356thdg"}
           }
  }
  </code></pre>