NonNullKeysOnMapExt<K, V>  extension 
 
- on
- 
          - Map<K?, V> 
 
- Map<
Properties
- 
  nonNullKeys
  → Map<K, V> 
- 
      Available on Map< Returns a new map with all non-null keys and values.K?, V> , provided by the NonNullKeysOnMapExt extensionno setter