docstr: Creates and adds 3 runs to the multiplexer.
docstr_tok: ["Creates","and","adds","3","runs","to","the","multiplexer","."]
code: def _add3RunsToMultiplexer(self, logdir, multiplexer):
      """Creates and adds 3 runs to the multiplexer."""
      run1_dir = os.path.join(logdir, "run1")
      run2_dir = os.path.join(logdir, "run2")
      run3_dir = os.path.join(logdir, "run3")
  
      for dirname in [run1_dir, run2_dir, run3_dir]:
          _AddEvents(dirname)
  
      multiplexer.AddRun(run1_dir, "run1")
      multiplexer.AddRun(run2_dir, "run2")
      multiplexer.AddRun(run3_dir, "run3")
  
imports: import os
  import os.path
  import queue
  import shutil
  import tensorflow
  from tensorboard.backend.event_processing import plugin_event_accumulator
  from tensorboard.backend.event_processing import plugin_event_multiplexer
  from tensorboard.util import test_util
label_desc: Use image node_id 3 for calling the EventMultiplexerWithRealAccumulatorTest obj's underlying member method code with example usage: obj._add3RunsToMultiplexer(logdir, multiplexer) without return types