code: def convert_to_order_dict(map_list):
          
          ordered_dict = OrderedDict()
          for map_dict in map_list:
              ordered_dict.update(map_dict)
          
          return ordered_dict
docs: convert mapping in list to ordered dict
          @param (list) map_list
              [
                  {"a": 1},
                  {"b": 2}
              ]
          @return (OrderDict)
              OrderDict({
                  "a": 1,
                  "b": 2
              })