code: def find_sanitiser_nodes(
      sanitiser,
      sanitisers_in_file
  ):
      
      for sanitiser_tuple in sanitisers_in_file:
          if sanitiser == sanitiser_tuple.trigger_word:
              yield sanitiser_tuple.cfg_node
docs: Find nodes containing a particular sanitiser.
  
      Args:
          sanitiser(string): sanitiser to look for.
          sanitisers_in_file(list[Node]): list of CFG nodes with the sanitiser.
  
      Returns:
          Iterable of sanitiser nodes.