code: def setUp(self):
      class_name = self.__class__.__name__
      conf = SparkConf().set("spark.python.worker.reuse", "true")
      self.sc = SparkContext("local[2]", class_name, conf=conf)
  
imports: import os
  import random
  import stat
  import sys
  import tempfile
  import time
  import unittest
  from pyspark import SparkConf, SparkContext, TaskContext, BarrierTaskContext
  from pyspark.testing.utils import PySparkTestCase, SPARK_HOME, eventually
label_desc: Use image node_id 1 for calling the TaskContextTestsWithWorkerReuse obj's underlying member method code with example usage: obj.setUp() without return types