code: def dump_nfa(
      self, name: str, start: "NFAState", finish: "NFAState"
  ) -> None:
      print("Dump of NFA for", name)
      todo = [start]
      for i, state in enumerate(todo):
          print("  State", i, state is finish and "(final)" or "")
          for label, next in state.arcs:
              if next in todo:
                  j = todo.index(next)
              else:
                  j = len(todo)
                  todo.append(next)
              if label is None:
                  print("    -> %d" % j)
              else:
                  print("    %s -> %d" % (label, j))
  
imports: import os
  from typing import IO, Any, Dict, Iterator, List, NoReturn, Optional, Sequence, Tuple, Union
  from blib2to3.pgen2 import grammar, token, tokenize
  from blib2to3.pgen2.tokenize import GoodTokenInfo
  import pkgutil
  import io
label_desc: Use image node_id 9 for calling the ParserGenerator obj's underlying member method code with example usage: obj.dump_nfa(name, start, finish) without return types