/**
* Creates a new set with the same elements as the given collection. The collection is created
* with a capacity of twice the number of mappings in the given map or 11 (whichever is greater),
* and a default load factor and concurrencyLevel.
*
* @param c Collection to add.
*/
public GridLeanSet(Collection<E> c) {
super(new GridLeanMap<>(F.zip(c, VAL)));
}
