class_docstr: A concrete representation of a DFA in terms of an explicit list
  of states.
class_docstr_tok: ["A","concrete","representation","of","a","DFA","in","terms","of","an","explicit","list","of","states","."]
code: def is_accepting(self, i):
      return i in self.__accepting
  
imports: import threading
  from collections import Counter, defaultdict, deque
  from math import inf
  from hypothesis.internal.reflection import proxies
label_desc: Use image node_id 4 for calling the ConcreteDFA obj's underlying member method code with example usage: obj.is_accepting(i) and returns: unknown