code: def paths(self, data_directory):
      paths = {
          "no_warmup": [
              os.path.join(
                  data_directory, "cmdstan/output_no_warmup1.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/output_no_warmup2.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/output_no_warmup3.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/output_no_warmup4.csv"
              ),
          ],
          "warmup": [
              os.path.join(
                  data_directory, "cmdstan/output_warmup1.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/output_warmup2.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/output_warmup3.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/output_warmup4.csv"
              ),
          ],
          "no_warmup_glob": os.path.join(
              data_directory, "cmdstan/output_no_warmup[0-9].csv"
          ),
          "warmup_glob": os.path.join(
              data_directory, "cmdstan/output_warmup[0-9].csv"
          ),
          "eight_schools_glob": os.path.join(
              data_directory, "cmdstan/eight_schools_output[0-9].csv"
          ),
          "eight_schools": [
              os.path.join(
                  data_directory, "cmdstan/eight_schools_output1.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/eight_schools_output2.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/eight_schools_output3.csv"
              ),
              os.path.join(
                  data_directory, "cmdstan/eight_schools_output4.csv"
              ),
          ],
      }
      return paths
  
imports: import os
  import numpy
  import pytest
  from ...None import from_cmdstan
  from ..helpers import check_multiple_attrs
label_desc: Use image node_id 2 for calling the TestDataCmdStan obj's underlying member method code with example usage: obj.paths(data_directory) and returns: paths