code: def get(self, data_index):
      return self.data[data_index % self.size]
  
file_path: SerpentAI/serpent/machine_learning/reinforcement_learning/rainbow_dqn/segment_tree.py
label_desc: Use image node_id 5 for calling the SegmentTree obj's underlying member method code with example usage: obj.get(data_index) and returns: self