code: def make_grammar(self) -> PgenGrammar:
      c = PgenGrammar()
      names = list(self.dfas.keys())
      names.sort()
      names.remove(self.startsymbol)
      names.insert(0, self.startsymbol)
      for name in names:
          i = 256 + len(c.symbol2number)
          c.symbol2number[name] = i
          c.number2symbol[i] = name
      for name in names:
          dfa = self.dfas[name]
          states = []
          for state in dfa:
              arcs = []
              for label, next in sorted(state.arcs.items()):
                  arcs.append(
                      (self.make_label(c, label), dfa.index(next))
                  )
              if state.isfinal:
                  arcs.append((0, dfa.index(state)))
              states.append(arcs)
          c.states.append(states)
          c.dfas[c.symbol2number[name]] = (
              states,
              self.make_first(c, name),
          )
      c.start = c.symbol2number[self.startsymbol]
      return c
  
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 2 for calling the ParserGenerator obj's underlying member method code with example usage: obj.make_grammar() and returns: c