code: def test_apply_infer_schema_without_shortcut(self):
      # SPARK-39054: Ensure infer schema accuracy in GroupBy.apply
      with option_context("compute.shortcut_limit", 0):
          dfs = (
              {"timestamp": [0.0], "car_id": ["A"]},
              {"timestamp": [0.0, 0.0], "car_id": ["A", "A"]},
          )
          func = lambda _: pd.DataFrame({"column": [0.0]})  # noqa: E731
          for df in dfs:
              pdf = pd.DataFrame(df)
              psdf = ps.from_pandas(pdf)
              self.assert_eq(
                  psdf.groupby("car_id").apply(func).sort_index(),
                  pdf.groupby("car_id").apply(func).sort_index(),
              )
  
imports: import unittest
  import numpy
  import pandas
  from pyspark import pandas
  from pyspark.pandas.config import option_context
  from pyspark.testing.pandasutils import ComparisonTestBase
  from pyspark.testing.sqlutils import SQLTestUtils
label_desc: Use image node_id 6 for calling the GroupbyApplyFuncMixin obj's underlying member method code with example usage: obj.test_apply_infer_schema_without_shortcut() without return types