code: def test_transform_fitintransform():
      """Test fit/transform against BoxCoxTransformer."""
      fitintransform = FitInTransform(BoxCoxTransformer())
      fitintransform.fit(X=X_train)
      y_hat = fitintransform.transform(X=X_test)
  
      y_hat_expected = BoxCoxTransformer().fit_transform(X_test)
      assert_series_equal(y_hat, y_hat_expected)
  
imports: from pandas.testing import assert_series_equal
  from sktime.split import temporal_train_test_split
  from sktime.transformations.compose import FitInTransform
  from sktime.transformations.series.boxcox import BoxCoxTransformer
  from sktime.utils._testing.forecasting import make_forecasting_problem
label_desc: Use image node_id 1 for calling a global function with example usage: test_transform_fitintransform() without return types