code: async def uint(self, elem, elem_type, params=None):
          
          one_b_type = x.is_type(elem_type, (x.Int8, x.UInt8))
          if self.writing:
              return (await x.dump_uint(self.iobj, elem, 1)) if one_b_type else (await dump_uvarint(self.iobj, elem))
          else:
              return (await x.load_uint(self.iobj, 1)) if one_b_type else (await load_uvarint(self.iobj))
docs: Integer types
          :param elem:
          :param elem_type:
          :param params:
          :return: