class tee_node:

    def __init__():
        self.left = None
        self.right = None
        self.parent = None

e8ecdfa8bb99d62ff4a9a7dbd3fda3acd1373246
<mask token>

class tee_node:
    <mask token>

class tee_node:

    def __init__():
        self.left = None
        self.right = None
        self.parent = None
