code: def chars_not_in_alphabet(alphabet, string):
      # Given a string, return a tuple of the characters which are not in alphabet
      if alphabet is None:
          return ()
      intset = unwrap_strategies(alphabet).intervals
      return tuple(c for c in string if c not in intset)
  
imports: import operator
  import re
  from hypothesis.errors import InvalidArgument
  from hypothesis.internal import charmap
  from hypothesis.strategies._internal.lazy import unwrap_strategies
  from hypothesis.strategies._internal.strings import OneCharStringStrategy
  from hypothesis import reject, strategies
  from hypothesis.internal.charmap import as_general_categories, categories
  from hypothesis.internal.compat import add_note, int_to_byte
label_desc: Use image node_id 5 for calling a global function with example usage: chars_not_in_alphabet(alphabet, string) and returns: tuple, 