class_docstr: Helper class used by nfa_to_dfa() to map back and forth between
  sets of states from the old machine and states of the new machine.
docstr: Convert a set of states into a uniquified
  sorted tuple suitable for use as a dictionary key.
docstr_tok: ["Convert","a","set","of","states","into","a","uniquified","sorted","tuple","suitable","for","use","as","a","dictionary","key","."]
code: def make_key(self, state_set):
      """
      Convert a set of states into a uniquified
      sorted tuple suitable for use as a dictionary key.
      """
      lst = list(state_set)
      lst.sort()
      return tuple(lst)
  
file_path: catboost/contrib/tools/cython/Cython/Plex/DFA.py
imports: from __future__ import absolute_import
  from .None import Machines
  from .Machines import LOWEST_PRIORITY
  from .Transitions import TransitionMap
label_desc: Use image node_id 5 for calling the StateMap obj's underlying member method code with example usage: obj.make_key(state_set) and returns: tuple