question: private Set < StoragePort > reduceStoragePortMap ( Map < String , Set < StoragePort > > map ) { Set < StoragePort > set = new HashSet < StoragePort > ( ) ; for ( Set < StoragePort > aSet : map . values ( ) ) { set . addAll ( aSet ) ; } return set ; }
target:  Reduces a Map containing Sets of StoragePorts to a single Set of Storage Ports by including the ports in all the values of the map.