code: def testRemovesItemsWhenItemsAreReplaced(self):
      b = reservoir._ReservoirBucket(100)
      for i in range(10000):
          b.AddItem(i)
      self.assertEqual(b._num_items_seen, 10000)
  
      # Remove items
      num_removed = b.FilterItems(lambda x: x <= 7)
      self.assertGreater(num_removed, 92)
      self.assertEqual([], [item for item in b.Items() if item > 7])
      self.assertEqual(
          b._num_items_seen,
          int(round(10000 * (1 - float(num_removed) / 100))),
      )
  
imports: import tensorflow
  from tensorboard.backend.event_processing import reservoir
label_desc: Use image node_id 10 for calling the ReservoirBucketTest obj's underlying member method code with example usage: obj.testRemovesItemsWhenItemsAreReplaced() without return types