Hi  Anshul,
go to referal url :
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_restful_http_testing_httpcalloutmock.htm
as suraj mentioned that's is the right.
and AnimalResult result = (AnimalResult) JSON.deserialize(response.getBody(), AnimalResult.class).
AnimalResult is the another class such as wrapper class , in where you are doing set response body.

for instance : 
public class AnimalResult{
public  string sResponse;
public string sData;
}
assume that you have a class in where you have 2 property like above when you execute following line the response data automaticly store into animalResult's property.
AnimalResult result = (AnimalResult) JSON.deserialize(response.getBody(), AnimalResult.class).
but make sure that the property name must be into impletemantion class's body.

for example following is your implement class and your property name must be into this class response body like following.

res.setBody('{"example":"test",
"sResponse" : "putValue",
"sData": "putData"}');

@isTest
global class MockHttpResponseGenerator implements HttpCalloutMock {
    // Implement this interface method
    global HTTPResponse respond(HTTPRequest req) {
        // Optionally, only send a mock response for a specific endpoint
        // and method.
        System.assertEquals('http://example.com/example/test', req.getEndpoint());
        System.assertEquals('GET', req.getMethod());
        
        // Create a fake response
        HttpResponse res = new HttpResponse();
        res.setHeader('Content-Type', 'application/json');
        res.setBody('{"example":"test"}');
        res.setStatusCode(200);
        return res;
    }
}