We are maintaining ForecastResult, which is our model. For this purpose, we have data classes in Kotlin. One of the coolest features in Kotlin is data classes. All the pain that we used to endure to create and maintain POJO classes in Java is gone. No need to have those dedicated packages to hold your model class. Any Kotlin file can hold your data class. By default it provides you methods such as toString(), equals(), copy(), and hashCode() method implementation. In Android, we mostly use these types of classes to hold our JSON responses in the form of model classes. You can check out the data classes we created in ServerResponses.kt:
data class ForecastResult(val city: City, val list: Array<Forecast>) data class City(val ...
