forEachKey method
Applies f to each {key, Iterable<value>} pair of the multimap.
It is an error to add or remove keys from the map during iteration.
Implementation
@override
void forEachKey(void Function(K key, C value) f) => _map.forEach(f);
Applies f to each {key, Iterable<value>} pair of the multimap.
It is an error to add or remove keys from the map during iteration.
@override
void forEachKey(void Function(K key, C value) f) => _map.forEach(f);