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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def getRandomBinaryTreeLeafNode(binaryTree):
 """Get random binary tree node. """

    if binaryTree.internal == True:
        if random.random() > 0.5:
            return getRandomBinaryTreeLeafNode(binaryTree.left)
        else:
            return getRandomBinaryTreeLeafNode(binaryTree.right)
    else:
        return binaryTree