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# Top
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<br>
Transforms for finding the largest (or smallest) set of elements in
a collection, or the largest (or smallest) set of values associated
with each key in a collection of key-value pairs.

## Examples
See [BEAM-7390](https://issues.apache.org/jira/browse/BEAM-7390) for updates. 

## Related transforms 
* [Sample]({{ site.baseurl }}/documentation/transforms/python/aggregation/sample) to combine elements. takes samples of the elements in a collection.