code: def filepaths(self, data_directory):
      files = {
          "nowarmup": glob(
              os.path.join(
                  data_directory,
                  "cmdstanpy",
                  "cmdstanpy_eight_schools_nowarmup-[1-4].csv",
              )
          ),
          "warmup": glob(
              os.path.join(
                  data_directory,
                  "cmdstanpy",
                  "cmdstanpy_eight_schools_warmup-[1-4].csv",
              )
          ),
      }
      return files
  
imports: import os
  import sys
  import tempfile
  from glob import glob
  import numpy
  import pytest
  from ...None import from_cmdstanpy
  from ..helpers import chains, check_multiple_attrs, draws, eight_schools_params, importorskip, load_cached_models, pystan_version
label_desc: Use image node_id 2 for calling the TestDataCmdStanPy obj's underlying member method code with example usage: obj.filepaths(data_directory) and returns: files