code: async def dump_varint_t(writer, type_or, pv):
      
      width = int_mark_to_size(type_or)
      n = (pv << 2) | type_or
  
      buffer = _UINT_BUFFER
      for _ in range(width):
          buffer[0] = n & 0xff
          await writer.awrite(buffer)
          n >>= 8
  
      return width
docs: Binary dump of the integer of given type
  
      :param writer:
      :param type_or:
      :param pv:
      :return: