code: def main(unused_argv):
      print("Saving output to %s." % LOGDIR)
      run_all(LOGDIR, verbose=True)
      print(
          """
  You can now view the scalars in this logdir:
  
  Run TensorBoard locally:
  
      tensorboard --logdir=%s
  
  Upload to TensorBoard.dev:
  
      tensorboard dev upload \\
        --logdir=%s \\
        --name=\"Scalars demo.\" \\
        --one_shot
  """
          % (LOGDIR, LOGDIR)
      )
      print("Done. Output saved to %s." % LOGDIR)
  
imports: import os.path
  from absl import app
  import tensorflow
label_desc: Use image node_id 4 for calling a global function with example usage: main(unused_argv) without return types