code: def build_chunks(self):
      pass
  
imports: import os
  import random
  import string
  import riegeli
  from tensorflow.python.platform import test
  from tensorflow.tools.proto_splitter import chunk_pb2
  from tensorflow.tools.proto_splitter import split
  from tensorflow.tools.proto_splitter.testdata import test_message_pb2
label_desc: Use image node_id 1 for calling the NoOpSplitter obj's underlying member method code with example usage: obj.build_chunks() without return types