IterableGroupBy<E>  extension 
 
- on
- 
          - Iterable<E> 
 
- Iterable<
Methods
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  groupBy<K> (K keySelector(E element)) → Map< K, List< E> >
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      Available on Iterable< Groups elements of the original collection by the key returned by the givenE> , provided by the IterableGroupBy extensionkeySelectorfunction applied to each element and returns a map.