code: def get_lang_tag_mapping(self):
      return self.config.get("lang_tag_mapping", {})
  
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 14 for calling the SingleTaskConfig obj's underlying member method code with example usage: obj.get_lang_tag_mapping() and returns: self