class_docstr: A ParlAI script is a standardized form of access.
class_docstr_tok: ["A","ParlAI","script","is","a","standardized","form","of","access","."]
docstr: The main method.
  
  Must be implemented by the script writer.
docstr_tok: ["The","main","method",".","Must","be","implemented","by","the","script","writer","."]
code: def run(self):
      """
      The main method.
  
      Must be implemented by the script writer.
      """
      raise NotImplementedError()
  
imports: import sys
  import io
  import argparse
  from typing import List, Optional, Dict, Any
  import parlai
  from parlai.core.opt import Opt
  from parlai.core.params import ParlaiParser, CustomHelpFormatter
  from abc import abstractmethod
  import importlib
  import pkgutil
  import parlai.scripts
  import parlai.utils.logging
  from parlai.core.loader import register_script, SCRIPT_REGISTRY
label_desc: Use image node_id 3 for calling the ParlaiScript obj's underlying member method code with example usage: obj.run() without return types