code: def _reseed(self):
          
          self._char = choice(self._snow_chars)
          self._rate = randint(1, 3)
          self._x = randint(0, self._screen.width - 1)
          self._y = self._screen.start_line + randint(0, self._rate)
docs: Randomly create a new snowflake once this one is finished.