code: def testMaxRecordedProbability(self):
      k = 32
      self._tree.set(node_index=0, value=0)
      self.assertEqual(self._tree.max_recorded_priority, 1)
      for i in range(1, k):
          self._tree.set(node_index=i, value=i)
          self.assertEqual(self._tree.max_recorded_priority, i)
  
imports: import random
  import unittest
  from reagent.replay_memory import sum_tree
label_desc: Use image node_id 16 for calling the SumTreeTest obj's underlying member method code with example usage: obj.testMaxRecordedProbability() without return types