code: def decoder_type(self):
      return self.config.get("decoder_type", "transformer")
  
imports: import logging
  from argparse import Namespace
  from copy import deepcopy
  from pathlib import Path
  from typing import Dict, Optional
  from fairseq.data import Dictionary
label_desc: Use image node_id 3 for calling the SingleTaskConfig obj's underlying member method code with example usage: obj.decoder_type() and returns: self