Python

We learned that when we declare a class using inheritance, the _____ bases _____ attribute of the class is bound to a tuple of references to its base classes. Write a recursive function named bases that takes a reference to any class and returns a set containing that class and all its base classes (back to object). You may not use the _____ mro or mro attributes of the class, which would trivialize your function. You may use both iteration (over the _____ bases _____ list) and recursion. For example, given the following class definitions in a script class F:pass class C:pass class G: pass class B(F): pass class D(G): pass class A(B, C, D): pass Calling bases (A) returns the set {, , , , )}