code: def _path(opt):
      # build the data if it does not exist
      build(opt)
  
      # set up path to data (specific to each dataset)
      data_path = os.path.join(opt["datapath"], "redial")
      return data_path
  
imports: from parlai.core.teachers import FixedDialogTeacher
  from parlai.utils.io import PathManager
  from .build import build
  import os
  import json
  import re
  import csv
label_desc: Use image node_id 1 for calling a global function with example usage: _path(opt) and returns: data_path