code: def test_ping(self):
      count = 100
  
      with run_configs.get().start(want_rgb=False) as controller:
          with stopwatch.sw("first"):
              controller.ping()
  
          for _ in range(count):
              controller.ping()
  
      self.assertEqual(stopwatch.sw["ping"].num, count)
  
imports: from absl.testing import absltest
  from pysc2 import run_configs
  from pysc2.lib import stopwatch
  from pysc2.tests import utils
label_desc: Use image node_id 1 for calling the TestPing obj's underlying member method code with example usage: obj.test_ping() without return types