code: def time_sparse_series_to_coo(self, sort_labels):
      self.ss_mult_lvl.sparse.to_coo(
          row_levels=[0, 1],
          column_levels=[2, 3],
          sort_labels=sort_labels,
      )
  
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 2 for calling the ToCoo obj's underlying member method code with example usage: obj.time_sparse_series_to_coo(sort_labels) without return types