Question $2[10$ points$]$: A productive approach to defining new classes is to determine what attributes each object should have. Based on the description and example below, first, identify the type of each attribute and how it will be used, then try to implement the class's methods in terms of those attributes. Your implementation must work in general, that is$,$ for other input values to create the object. The Python methods lower$()$ and upper$()$ could be useful here! A Button takes an integer and a string that represents a character in a keyboard, and example of functionality: