code: def main(_):
      if FLAGS.for_commoncrawl:
          problem = wikisum.WikisumCommoncrawl()
      else:
          problem = wikisum.WikisumWeb()
      problem.generate_vocab(
          FLAGS.out_dir, FLAGS.wikis_dir, FLAGS.refs_dir
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from tensor2tensor.data_generators.wikisum import wikisum
  import tensorflow.compat.v1
label_desc: Use image node_id 1 for calling a global function with example usage: main(_) without return types