code: def setup_data(self):
      build(self.opt)
      jsons_path = os.path.join(self.opt["datapath"], "DREAM")
      return self.setup_helper(jsons_path)
  
file_path: ParlAI/parlai/tasks/dream/agents.py
imports: from parlai.core.teachers import FixedDialogTeacher
  from parlai.utils.io import PathManager
  from .build import build
  import os
  import json
label_desc: Use image node_id 3 for calling the DREAMTeacher obj's underlying member method code with example usage: obj.setup_data() and returns: self