code: def test_explain(self):
      oo = TestExplainBuilder.ExplainableObj()
  
      assert oo.getPartitionKey() == 1
      assert oo.partition_key == 1
  
      assert oo.getSecondPartitionKey() == 2
      assert oo.second_partition_key == 2
  
      assert oo.getInputCol() == "input"
      assert oo.input_col == "input"
  
      assert oo.getOutputCol() == "output"
      assert oo.output_col == "output"
  
file_path: SynapseML/core/src/test/python/synapsemltest/cyber/utils/test_spark_utils.py
imports: import unittest
  from typing import List, Tuple
  from pyspark.sql import DataFrame
  from pyspark.sql.types import StructType, StructField, StringType
  from pyspark.ml import Transformer
  from pyspark.ml.param.shared import Param, Params
  from synapse.ml.cyber.utils.spark_utils import DataFrameUtils, ExplainBuilder, HasSetInputCol, HasSetOutputCol
  from synapsemltest.spark import *
label_desc: Use image node_id 1 for calling the TestExplainBuilder obj's underlying member method code with example usage: obj.test_explain() without return types