code: def setup(self, dense_proportion, fill_value, dtype):
      N = 10**6
      self.array = make_array(N, dense_proportion, fill_value, dtype)
  
imports: import numpy
  import scipy.sparse
  import pandas
  from pandas import MultiIndex, Series, date_range
  from pandas.arrays import SparseArray
  from .pandas_vb_common import setup
label_desc: Use image node_id 1 for calling the SparseArrayConstructor obj's underlying member method code with example usage: obj.setup(dense_proportion, fill_value, dtype) without return types