Get a Point conversion of this aggregation.

        :type timestamp: :class: `datetime.datetime`
        :param timestamp: The time to report the point as having been recorded.

        :rtype: :class: `opencensus.metrics.export.point.Point`
        :return: a :class: `opencensus.metrics.export.value.ValueDouble`-valued
        Point with value equal to `sum_data`.

def to_point(self, timestamp):
        """Get a Point conversion of this aggregation.

        :type timestamp: :class: `datetime.datetime`
        :param timestamp: The time to report the point as having been recorded.

        :rtype: :class: `opencensus.metrics.export.point.Point`
        :return: a :class: `opencensus.metrics.export.value.ValueDouble`-valued
        Point with value equal to `sum_data`.
        """
        return point.Point(value.ValueDouble(self.sum_data), timestamp)