code: def _path(opt):
      build(opt)
      dt = opt["datatype"].split(":")[0]
      if dt in ["train", "valid", "test"]:
          data_path = os.path.join(
              opt["datapath"], "personality_captions/{}.json".format(dt)
          )
  
      personalities_data_path = os.path.join(
          opt["datapath"], "personality_captions/personalities.json"
      )
      image_path = ""
      if opt.get("yfcc_path"):
          image_path = opt["yfcc_path"]
      else:
          image_path = os.path.join(opt["datapath"], "yfcc_images")
  
      return data_path, personalities_data_path, image_path
  
imports: from typing import Optional
  from parlai.core.params import ParlaiParser
  from parlai.core.opt import Opt
  from parlai.core.teachers import FixedDialogTeacher
  from parlai.core.image_featurizers import ImageLoader
  from parlai.utils.io import PathManager
  from .build import build
  import json
  import os
label_desc: Use image node_id 1 for calling a global function with example usage: _path(opt) and returns: data_path,  personalities_data_path,  image_path