class_docstr: Class for storing events in a polyphonic sequence.
class_docstr_tok: ["Class","for","storing","events","in","a","polyphonic","sequence","."]
code: def __repr__(self):
      return "PolyphonicEvent(%r, %r)" % (self.event_type, self.pitch)
  
imports: from __future__ import division
  import collections
  import copy
  from magenta.pipelines import statistics
  from note_seq import constants
  from note_seq import events_lib
  from note_seq import sequences_lib
  from note_seq.protobuf import music_pb2
  from six.moves import range
  import tensorflow.compat.v1
label_desc: Use image node_id 2 for calling the PolyphonicEvent obj's underlying member method code with example usage: obj.__repr__() and returns: unknown