class_docstr: Abstract data loader.
class_docstr_tok: ["Abstract","data","loader","."]
code: def get_id_task_prefix(self):
      return "Taskmaster3"
  
imports: from parlai.core.params import ParlaiParser
  import os
  import pandas
  from parlai.core.opt import Opt
  import parlai.core.tod.tod_core
  import json
  from typing import Optional
  from parlai.utils.data import DatatypeHelper
  from parlai.utils.io import PathManager
  import parlai.tasks.taskmaster3.build
  import parlai.core.tod.tod_agents
label_desc: Use image node_id 9 for calling the Taskmaster3Parser obj's underlying member method code with example usage: obj.get_id_task_prefix() and returns: str