def _shrink(self):
        """
        Shrinks the dynamic table to be at or below maxsize
        """
        cursize = self._current_size
        while cursize > self._maxsize:
            name, value = self.dynamic_entries.pop()
            cursize -= table_entry_size(name, value)
        self._current_size = cursize
Shrinks the dynamic table to be at or below maxsize