class_docstr: A tf.data service worker.
class_docstr_tok: ["A","tf.data","service","worker","."]
code: def start(self):
      self._server.start()
      self._port = int(self._server._address.split(":")[1])
      self._running = True
  
imports: import tempfile
  from tensorflow.core.protobuf import service_config_pb2
  from tensorflow.python.data.experimental.ops import data_service_ops
  from tensorflow.python.data.experimental.service import server_lib
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import dtypes
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 3 for calling the TestWorker obj's underlying member method code with example usage: obj.start() without return types