code: def main(unused_argv):
      print("Saving output to %s." % FLAGS.logdir)
      write_embedding(FLAGS.logdir)
      print("Done. Output saved to %s." % FLAGS.logdir)
  
file_path: tensorboard/tensorboard/plugins/projector/projector_demo.py
imports: import os
  import string
  from absl import app
  from absl import flags
  from tensorboard.plugins import projector
label_desc: Use image node_id 3 for calling a global function with example usage: main(unused_argv) without return types