How to get 'sum' for update_theta_sketch on DataSketches Python API

[Tomer B]

In python API I can do 'update_theta_sketch' and then get_estimate to get
the unique count.
But how can I get the sum in python for update_theta sketch?

I see it's available in non python dataksetch here:

public static enum Mode -->

    /**
     * The aggregation mode is the summation function.
     * <p>New retained value = previous retained value + incoming value</p>
     */

Sum,

But how to get this in python for update_theta_sketch is there anything
like get_estimation with mode sum instead of count distinct?

Thanks

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