class_docstr: A mapping from symbols to consecutive integers
class_docstr_tok: ["A","mapping","from","symbols","to","consecutive","integers"]
code: def lexicon_indices_list(self) -> List[int]:
      return list(self.lexicon_indices)
  
imports: import os
  import re
  from typing import Dict, List, Optional, Set
  from fairseq.data import dictionary
  from fairseq.file_io import PathManager
  from pytorch_translate import vocab_constants
label_desc: Use image node_id 2 for calling the Dictionary obj's underlying member method code with example usage: obj.lexicon_indices_list() and returns: list