code: def test_basics():
      n = fsa.epsilon_nfa()
      assert n.accept("")
      assert not n.accept("a")
  
      n = fsa.basic_nfa("a")
      assert not n.accept("")
      assert n.accept("a")
      assert not n.accept("b")
  
      n = fsa.dot_nfa()
      assert not n.accept("")
      assert n.accept("a")
      assert n.accept("b")
  
imports: import gzip
  import os.path
  from bisect import bisect_left
  from whoosh.compat import permutations
  from whoosh.compat import xrange
  from whoosh.automata import fsa, glob, lev
  from whoosh.support.levenshtein import levenshtein
label_desc: Use image node_id 11 for calling a global function with example usage: test_basics() without return types