code: def __init__(self, left, right, feature, threshold, l_mass, r_mass):
      super().__init__(left, right)
      self.feature = feature
      self.threshold = threshold
      self.l_mass = l_mass
      self.r_mass = r_mass
  
imports: from __future__ import annotations
  import collections
  import functools
  import random
  from river import anomaly, base, tree
label_desc: Use image node_id 1 to create a new HSTBranch object from inherited base classes: tree.base with example: obj = HSTBranch(left, right, feature, threshold, l_mass, r_mass)