Given the root to a binary tree, implement serialize(root), which serializes the tree into a string, and deserialize(s), which deserializes the string back into the tree.node
For example, given the following Node classcode
class Node: def __init__(self, val, left=None, right=None): self.val = val self.left = left self.right = right
The following test should pass:string
node = Node('root', Node('left', Node('left.left')), Node('right')) assert deserialize(serialize(node)).left.left.val == 'left.left'