O
Size: a a a
O
O
O
l
O
l
O
O
O
O
l
l
country.getFlag() ?O
O
.flatMap(new Function<Country, ObservableSource<?>>() {
@Override
public ObservableSource<?> apply(Country country) throws Exception {
return getFlags(country.getFlag());
}
})O
flatMap
(io.reactivex.functions.Function<? super java.lang.Object,? extends io.reactivex.ObservableSource<? extends R>>)
in Observable cannot be applied
to
(anonymous io.reactivex.functions.Function<com.example.restcountries.model.county.Country,io.reactivex.ObservableSource<?>>)
reason: no instance(s) of type variable(s) exist so that Object conforms to Country
O
NM