code: def testAddRunMaintainsLoading(self):
      x = event_multiplexer.EventMultiplexer()
      x.Reload()
      x.AddRun("run1")
      x.AddRun("run2")
      self.assertTrue(x.GetAccumulator("run1").reload_called)
      self.assertTrue(x.GetAccumulator("run2").reload_called)
  
imports: import os
  import os.path
  import shutil
  import tensorflow
  from tensorboard.backend.event_processing import event_accumulator
  from tensorboard.backend.event_processing import event_multiplexer
label_desc: Use image node_id 17 for calling the EventMultiplexerTest obj's underlying member method code with example usage: obj.testAddRunMaintainsLoading() without return types