docs: def InitFromDataPoints(self, start_stats, complete_stats):
      """Check that this approval applies to the given token.
  
      Args:
        start_stats: A list of lists, each containing two values (a timestamp and
          the number of clients started at this time).
        complete_stats: A list of lists, each containing two values (a timestamp
          and the number of clients completed at this time).
  
      Returns:
        A reference to the current instance to allow method chaining.
      """
      self.start_points = self._ConvertToResultList(start_stats)
      self.complete_points = self._ConvertToResultList(complete_stats)
      return self