pub trait FlattenWithIndexExt: Iterator {
// Provided method
fn flatten_with_index(self) -> FlattenWithIndex<Self> ⓘ
where Self::Item: IntoIterator,
Self: Sized { ... }
}pub trait FlattenWithIndexExt: Iterator {
// Provided method
fn flatten_with_index(self) -> FlattenWithIndex<Self> ⓘ
where Self::Item: IntoIterator,
Self: Sized { ... }
}