code: def cross_list(*sequences):
      """
      From: http://book.opensourceproject.org.cn/lamp/python/pythoncook2/opensource/0596007973/pythoncook2-chp-19-sect-9.html
      """
      result = [[]]
      for seq in sequences:
          result = [
              sublist + [item] for sublist in result for item in seq
          ]
      return result
  
label_desc: Use image node_id 1 for calling a global function with example usage: cross_list() and returns: result