code: def testStopAPI(self):
      coord = coordinator.Coordinator()
      self.assertFalse(coord.should_stop())
      self.assertFalse(coord.wait_for_stop(0.01))
      coord.request_stop()
      self.assertTrue(coord.should_stop())
      self.assertTrue(coord.wait_for_stop(0.01))
  
imports: import sys
  import threading
  import time
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.platform import test
  from tensorflow.python.training import coordinator
label_desc: Use image node_id 1 for calling the CoordinatorTest obj's underlying member method code with example usage: obj.testStopAPI() without return types