pub trait Flatten<O, E>: Sized {
fn flatten_ok<U, O2>(self) -> FlattenOk<Self, U> ⓘ
where
U: IntoIterator<Item = O2>;
fn flatten_err<U, E2>(self) -> FlattenErr<Self, U> ⓘ
where
U: IntoIterator<Item = E2>;
}
Expand description
Extension trait for Iterator<Item = Result<O, E>>
to selectively transform Oks and Errors.