Here is the data returned by placeid of google map.

```
 "geometry" : {
         "location" : {
            "lat" : 28.55616239999999,
            "lng" : 77.0999578
         },
         .....
         }

var result = jsonDecode(response.body)['result']['geometry']['location'];
print(result); //{lat: 28.6862738, lng: 77.2217831}
print(result.runtimeType);  //_InternalLinkedHashMap<String, dynamic>

```

when i access the value of `result` as `result['lat']` its give error

`The operator '[]' isn't defined for the type 'Object'. Try defining the operator '[]'`

my question is how to access the value of `_InternalLinkedHashMap<String, dynamic>`