human
I am working on the file "Python/Chapter-07/2-3-Trees-Visualization.ipynb".
The first task is:
The class Tree is not used in the implementation of 2-3 trees.  It is only used for displaying abstract subtrees in equations.
It is displayed as a triangle containing the string that is stored in the member variable mName.
Can you write Python code for it?
 ... What is a the Python code you requested?
assistant
#Here is the Python code you requested.

class Tree(TwoThreeTree):
    def __init__(self, name):
        TwoThreeTree.__init__(self)
        self.mName = name
        
    def __str__(self):
        return self.mName
    
    def isTree(self):
        return True