WeatherBuilder.kt

class WeatherBuilder{

    var currentDegrees: String? = null
    var currentLocation: String? = null
    val forecast = mutableListOf<Forecast>()

    fun forecast(block: ForecastBuilder.() -> Unit){
        forecast.add(ForecastBuilder().apply(block).build())
    }

    fun build(): Weather = Weather(currentDegrees, currentLocation, forecast)
}