code: def main(unused_argv):
      tf.logging.set_verbosity(FLAGS.log)
  
      if not FLAGS.input_dir:
          tf.logging.fatal("--input_dir required")
          return
      if not FLAGS.output_file:
          tf.logging.fatal("--output_file required")
          return
  
      input_dir = os.path.expanduser(FLAGS.input_dir)
      output_file = os.path.expanduser(FLAGS.output_file)
      output_dir = os.path.dirname(output_file)
  
      if output_dir:
          tf.gfile.MakeDirs(output_dir)
  
      convert_directory(input_dir, output_file, FLAGS.recursive)
  
file_path: magenta/magenta/scripts/convert_dir_to_note_sequences.py
imports: import hashlib
  import os
  from note_seq import abc_parser
  from note_seq import midi_io
  from note_seq import musicxml_reader
  import tensorflow.compat.v1
label_desc: Use image node_id 7 for calling a global function with example usage: main(unused_argv) without return types