code: def get_bundle():
      """Returns a generator_pb2.GeneratorBundle object based read from bundle_file.
  
      Returns:
        Either a generator_pb2.GeneratorBundle or None if the bundle_file flag is
        not set or the save_generator_bundle flag is set.
      """
      if FLAGS.save_generator_bundle:
          return None
      if FLAGS.bundle_file is None:
          return None
      bundle_file = os.path.expanduser(FLAGS.bundle_file)
      return sequence_generator_bundle.read_bundle_file(bundle_file)
  
file_path: magenta/magenta/models/melody_rnn/melody_rnn_generate.py
imports: import ast
  import os
  import time
  from magenta.models.melody_rnn import melody_rnn_config_flags
  from magenta.models.melody_rnn import melody_rnn_model
  from magenta.models.melody_rnn import melody_rnn_sequence_generator
  from magenta.models.shared import sequence_generator
  from magenta.models.shared import sequence_generator_bundle
  import note_seq
  from note_seq.protobuf import generator_pb2
  from note_seq.protobuf import music_pb2
  import tensorflow.compat.v1
label_desc: Use image node_id 2 for calling a global function with example usage: get_bundle() and returns: sequence_generator_bundle, None, None