code: def __init__(self, val, is_red, parent=None, left=None, right=None):
      self.val = val
      self.parent = parent
      self.left = left
      self.right = right
      self.color = is_red
  
file_path: keon-algos/algorithms/tree/red_black_tree/red_black_tree.py
label_desc: Use image node_id 1 to create a new RBNode object  with example: obj = RBNode(val, is_red, parent, left, right)