code: def setUpClass(cls):
      super().setUpClass()
      set_option("compute.ops_on_diff_frames", True)
  
file_path: spark/python/pyspark/pandas/tests/diff_frames_ops/test_groupby.py
imports: import pandas
  from pyspark import pandas
  from pyspark.pandas.config import set_option, reset_option
  from pyspark.testing.pandasutils import PandasOnSparkTestCase
  from pyspark.testing.sqlutils import SQLTestUtils
label_desc: Use image node_id 1 for calling the GroupByMixin obj's underlying member method code with example usage: obj.setUpClass(cls) without return types