Python DataClass: Implement Basic Key-Value Store with Get/Set

waymo Implement a data class in Python that simulates get and set operations like a database. Requirements: The data class should use a dictionary or another suitable data structure to store key-value pairs. Implement the set(key, value) method to store a key-value pair in the data class. Implement the get(key) method to return the value for a given key, or None if the key does not exist. Assume the inputs for both keys and values are of string type. Provide at least three test cases. Example: # Initialize the data class obj = DataClass() obj.set('a', '1') print(obj.get('a')) # Should output '1' print(obj.get('b')) # Should output None Example Input set c 3 get c