code: def run_boot_py(self):
      args = [
          self.runner_path,
          "--id",
          "1",
          "--logging_endpoint",
          "localhost:0000",
          "--artifact_endpoint",
          "whatever",
          "--provision_endpoint",
          "localhost:%d" % self.provision_port,
          "--control_endpoint",
          "localhost:0000",
          "--semi_persist_dir",
          self.tmp_dir,
      ]
  
      return subprocess.call(args, env=self.env)
  
imports: import os
  import shutil
  import socket
  import subprocess
  import sys
  import tempfile
  import time
  import unittest
  import grpc
  from concurrent import futures
  from apache_beam.portability.api.org.apache.beam.model.fn_execution.v1.beam_provision_api_pb2 import ProvisionInfo, GetProvisionInfoResponse
  from apache_beam.portability.api.org.apache.beam.model.fn_execution.v1.beam_provision_api_pb2_grpc import ProvisionServiceServicer, add_ProvisionServiceServicer_to_server
  from google.protobuf import json_format
  from pyflink.java_gateway import get_gateway
  from pyflink.pyflink_gateway_server import on_windows
  from pyflink.testing.test_case_utils import PyFlinkTestCase
label_desc: Use image node_id 2 for calling the PythonBootTests obj's underlying member method code with example usage: obj.run_boot_py() and returns: subprocess