code: def setup_method(self, method):
      self.df = get_ugly_ts_df()
  
file_path: analytics-zoo/pyzoo/test/zoo/chronos/data/utils/test_impute.py
imports: import pytest
  import pandas
  import numpy
  from test.zoo.pipeline.utils.test_utils import ZooTestCase
  from zoo.chronos.data.utils.impute import impute_timeseries_dataframe, _last_impute_timeseries_dataframe, _const_impute_timeseries_dataframe, _linear_impute_timeseries_dataframe
label_desc: Use image node_id 1 for calling the TestImputeTimeSeries obj's underlying member method code with example usage: obj.setup_method(method) without return types