code: def find(self, value):
      index = self._retrieve(0, value)
      data_index = index - self.size + 1
  
      return (self.sum_tree[index], data_index, index)
  
file_path: SerpentAI/serpent/machine_learning/reinforcement_learning/rainbow_dqn/segment_tree.py
label_desc: Use image node_id 4 for calling the SegmentTree obj's underlying member method code with example usage: obj.find(value) and returns: self,  data_index,  index