code: def _get_spark_session(self) -> sql.SparkSession:
      return sql.SparkSession.builder.appName("Test").getOrCreate()
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from collections import namedtuple
  import pandas
  from pyspark import sql
  from unittest import mock
  from unittest.mock import patch
  from pipeline_dp import dataframes
  import pipeline_dp
label_desc: Use image node_id 1 for calling the QueryTest obj's underlying member method code with example usage: obj._get_spark_session() and returns: sql