code: def _resolve_number_of_copies(self, items):
          
          copied_items = []
          for obj in items:
              for copy in range(self.get_copies_count()):
                  copied_items.append(obj)
          return copied_items
docs: For the given objects generate as many copies as the desired number
          of stickers.
  
          :param items: list of objects whose stickers are going to be previewed.
          :type items: list
          :returns: list containing n copies of each object in the items list
          :rtype: list