code: def setup(self):
      categories = list(string.ascii_letters[:12])
      s = pd.Series(
          np.random.choice(categories, size=1000000),
          dtype=CategoricalDtype(categories),
      )
      self.s = s
  
imports: from itertools import product
  import string
  import numpy
  import pandas
  from pandas import DataFrame, MultiIndex, date_range, melt, wide_to_long
  from pandas.api.types import CategoricalDtype
  from .pandas_vb_common import setup
label_desc: Use image node_id 1 for calling the GetDummies obj's underlying member method code with example usage: obj.setup() without return types