code: def test_transform_raises_error_if_na_in_input_df(df_vartypes, df_na):
      # test case 9: when dataset contains na, transform method
      with pytest.raises(ValueError):
          transformer = Winsorizer()
          transformer.fit(df_vartypes)
          transformer.transform(
              df_na[["Name", "City", "Age", "Marks", "dob"]]
          )
  
imports: import math
  import numpy
  import pandas
  import pytest
  from feature_engine.outliers import Winsorizer
label_desc: Use image node_id 22 for calling a global function with example usage: test_transform_raises_error_if_na_in_input_df(df_vartypes, df_na) without return types