code: async def section(self, sec=None):
          
          if self.writing:
              await dump_varint(self.iobj, len(sec))
              for key in sec:
                  await self.section_name(key)
                  await self.storage_entry(sec[key])
  
          else:
              sec = {} if sec is None else sec
  
              count = await load_varint(self.iobj)
              for idx in range(count):
                  sec_name = await self.section_name()
                  val = await self.storage_entry()
                  sec[sec_name] = val
  
              return sec
docs: Section / dict serialization
          :return: