lenskit.metrics.basic.UniqueItemAccumulator
===========================================

.. py:class:: lenskit.metrics.basic.UniqueItemAccumulator
   

   Bases: :py:obj:`lenskit.data.accum.Accumulator`


   Protocol implemented by data accumulators.


   .. py:method:: add(value)

      Add a single value to this accumulator.



   .. py:method:: accumulate()

      Compute the accumulated value from this accumulator.