code: def combine_search_keys(search_keys: List[str]) -> List[Tuple[str]]:
      combined_search_keys = []
      for L in range(1, len(search_keys) + 1):
          for subset in itertools.combinations(search_keys, L):
              combined_search_keys.append(subset)
      return combined_search_keys
  
label_desc: Use image node_id 1 for calling a global function with example usage: combine_search_keys(search_keys) and returns: combined_search_keys