如何在python中创建非二叉树？

class TreeNode:
    def __init__(self, value):
        self.value = value
        self.children = []

    def add_child(self, child):
        self.children.append(child)

# 创建根节点
root = TreeNode("A")

# 创建子节点
child1 = TreeNode("B")
child2 = TreeNode("C")
child3 = TreeNode("D")

# 将子节点添加到根节点
root.add_child(child1)
root.add_child(child2)
root.add_child(child3)

# 创建子节点的子节点
grandchild1 = TreeNode("E")
grandchild2 = TreeNode("F")

# 将子节点的子节点添加到子节点
child1.add_child(grandchild1)
child1.add_child(grandchild2)