code: def _path(self, opt):
      dt = opt["datatype"].split(":")
      datatype = "train" if dt[0] == "train" else "dev"
      return os.path.join(
          opt["datapath"],
          "qangaroo",
          "qangaroo_v1.1",
          "wikihop",
          datatype + ".json",
      )
  
imports: from parlai.core.teachers import FixedDialogTeacher
  from parlai.utils.io import PathManager
  from .build import build
  import json
  import os
label_desc: Use image node_id 1 for calling the WikiHopTeacher obj's underlying member method code with example usage: obj._path(opt) and returns: os