code: def conf(cls):
      conf = super().conf()
      conf.set(
          "spark.sql.artifact.copyFromLocalToFs.allowDestLocal", "true"
      )
      return conf
  
imports: import hashlib
  import shutil
  import tempfile
  import unittest
  import os
  from pyspark.errors.exceptions.connect import SparkConnectGrpcException
  from pyspark.sql import SparkSession
  from pyspark.testing.connectutils import ReusedConnectTestCase, should_test_connect
  from pyspark.testing.utils import SPARK_HOME
  from pyspark import SparkFiles
  from pyspark.sql.functions import udf
label_desc: Use image node_id 3 for calling the ArtifactTests obj's underlying member method code with example usage: obj.conf(cls) and returns: conf