code: def split_file_urls_by_size(self, size):
          
          large_items = []
          small_items = []
          for file_url in self.file_urls:
              if file_url.size >= size:
                  large_items.append(file_url)
              else:
                  small_items.append(file_url)
          return large_items, small_items
docs: Return tuple that contains a list large files and a list of small files based on size parameter
          :param size: int: size (in bytes) that determines if a file is large or small
          :return: ([ProjectFileUrl],[ProjectFileUrl]): (large file urls, small file urls)