class_docstr: dataclass configuration representing a userdefined dataset type
code: def __getitem__(self, item):
      return getattr(self, item)
  
file_path: axolotl/src/axolotl/prompt_strategies/user_defined.py
imports: from dataclasses import dataclass
  from functools import partial
  from typing import Optional, Tuple
  from axolotl.prompt_strategies.alpaca_w_system import InstructionWSystemPromptTokenizingStrategy, SystemDataPrompter
label_desc: Use image node_id 1 for calling the UserDefinedDatasetConfig obj's underlying member method code with example usage: obj.__getitem__(item) and returns: getattr