Question: in Python. Problem 4 - Binary Expressions Write a function expression_to_string(tree_node) that takes an expression binary tree and returns a string representation of that expression.

in Python. Problem 4 - Binary Expressions Write a function expression_to_string(tree_node)

in Python.

Problem 4 - Binary Expressions Write a function expression_to_string(tree_node) that takes an expression binary tree and returns a string representation of that expression. For example, given a binary tree visualized as follows # + 2 # IV # 5 5 11 TreeNode('*') 12 TreeNode('+') 13 = TreeNode(2) 11. insert_left(12) 11. insert_right(13) 14 = TreeNode(5) 15 = TreeNode (5) 12. insert_left(14) 12. insert_right (15) expression_to_string(tree_node) # returns: '((5 + 5) * 2) = 20 NOTE: For simplicity, you don't have to handle operators precedence, you can insert ( around the result of all binary operators

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