doOnLeftAsync method
Implementation
AsyncEither<L, R> doOnLeftAsync(FutureOr<void> Function(L v) block) async =>
(await this).mapLeftAsync((v) async {
await block(v);
return v;
});
AsyncEither<L, R> doOnLeftAsync(FutureOr<void> Function(L v) block) async =>
(await this).mapLeftAsync((v) async {
await block(v);
return v;
});