code: def testStartPlayback_NoUpdates_UpdateError(self):
      # Use a time in the past to test handling of past notes.
      start_time = time.time()
      seq = music_pb2.NoteSequence()
      notes = [Note(0, 100, start_time + 100, start_time + 101)]
      testing_lib.add_track_to_sequence(seq, 0, notes)
      player = self.midi_hub.start_playback(seq, allow_updates=False)
  
      with self.assertRaises(midi_hub.MidiHubError):
          player.update_sequence(seq)
  
      player.stop()
  
imports: import collections
  import queue
  import threading
  import time
  from magenta.common import concurrency
  from magenta.interfaces.midi import midi_hub
  import mido
  from note_seq import testing_lib
  from note_seq.protobuf import music_pb2
  import tensorflow.compat.v1
label_desc: Use image node_id 10 for calling the MidiHubTest obj's underlying member method code with example usage: obj.testStartPlayback_NoUpdates_UpdateError() without return types