code: def main(unused_argv=None):
      target = FLAGS.target
      if not target:
          print("The --target flag is required.")
          return -1
      if os.path.exists(target):
          if FLAGS.overwrite:
              if os.path.isdir(target):
                  shutil.rmtree(target)
              else:
                  os.remove(target)
          else:
              print(
                  "Refusing to overwrite target %s without --overwrite"
                  % target
              )
              return -2
      GenerateTestData(target)
      return 0
  
file_path: tensorboard/tensorboard/scripts/generate_testdata.py
imports: import bisect
  import math
  import os
  import os.path
  import random
  import shutil
  from absl import app
  from absl import flags
  import numpy
  import tensorflow
label_desc: Use image node_id 8 for calling a global function with example usage: main(unused_argv) and returns: int, unknown, unknown