Problem Description: Imagine you are tasked with building a weather monitoring system that observes and displays real-time weather data. The system should allow users to customize their experience by adding various decorators to enhance or modify the displayed information. Part 1: Observer Pattern Implement the observer pattern to handle real-time weather data updates. Design classes for the following components: WeatherDataSubject: A subject class that holds the real-time weather data (temperature, humidity, etc.) and notifies observers when the data changes. WeatherDataObserver: Observer interface that defines the update method for receiving and displaying the weather data. CurrentConditionsDisplay: Concrete observer class that displays the current weather conditions when notified