code: def teardown(self):
      print("teardown")
  
imports: from __future__ import print_function
  from pyspark import SparkContext
  from pyspark.sql import DataFrame, SQLContext
  from pyspark.sql import Row
  from pyspark.sql.functions import col
  import tensorflow
  import pandas
  import tensorframes
  from tensorframes.core import _java_api
label_desc: Use image node_id 4 for calling the TestCore obj's underlying member method code with example usage: obj.teardown() without return types