code: def test_monitored_timer_tracker(self):
      counter = monitoring.Counter(
          "test/ctxmgr", "test context manager", "slot"
      )
      counter2 = monitoring.Counter("test/ctxmgr2", "slot")
      with monitoring.MonitoredTimer(
          counter.get_cell("long"), "counter"
      ):
          time.sleep(0.01)
          self.assertIn("counter", monitoring.MonitoredTimerSections)
          with monitoring.MonitoredTimer(
              counter2.get_cell(), "counter2"
          ):
              time.sleep(0.01)
              self.assertIn(
                  "counter", monitoring.MonitoredTimerSections
              )
              self.assertIn(
                  "counter2", monitoring.MonitoredTimerSections
              )
              with monitoring.MonitoredTimer(
                  counter.get_cell("long"), "counter"
              ):
                  time.sleep(0.01)
          self.assertNotIn(
              "counter2", monitoring.MonitoredTimerSections
          )
      self.assertGreater(
          counter.get_cell("long").value(),
          counter.get_cell("short").value(),
      )
      self.assertGreater(counter2.get_cell().value(), 0)
  
file_path: tensorflow-upstream/tensorflow/python/eager/monitoring_test.py
imports: import time
  from tensorflow.python.eager import monitoring
  from tensorflow.python.eager import test
  from tensorflow.python.framework import test_util
label_desc: Use image node_id 9 for calling the MonitoringTest obj's underlying member method code with example usage: obj.test_monitored_timer_tracker() without return types