foldLeft<B> method
Implementation
@override B foldLeft<B>(B z, B f(B previous, V v)) =>
_map.foldLeft(z, (prev, kvs) => kvs.foldLeft(prev, (pprev, kv) => f(pprev, kv.value2)));
@override B foldLeft<B>(B z, B f(B previous, V v)) =>
_map.foldLeft(z, (prev, kvs) => kvs.foldLeft(prev, (pprev, kv) => f(pprev, kv.value2)));