insert function

def insert(atMe, newFrob):
    """
    atMe: a Frob that is part of a doubly linked list
    newFrob:  a Frob with no link
    This procedure appropriately inserts newFrob into the linked list that atMe is a part of.    
    """
    # Your Code Here
    if newFrob.myName() < atMe.myName():
        if atMe.getBefore() == None:
            atMe.setBefore(newFrob)
        else:
            atMe = atMe.getBefore()
            atMe.setAfter(newFrob)
    elif newFrob.myName() > atMe.myName():
        if atMe.getAfter() == None:
            atMe.setAfter(newFrob)
        else:
            atMe = atMe.getAfter()
            atMe.setBefore(newFrob)