pub trait ContinentKey {
// Required method
fn into_index(self, size: ContinentSize) -> ContinentIndex;
// Provided method
fn into_coord(self, size: ContinentSize) -> Result<Coord>
where Self: Sized { ... }
}pub trait ContinentKey {
// Required method
fn into_index(self, size: ContinentSize) -> ContinentIndex;
// Provided method
fn into_coord(self, size: ContinentSize) -> Result<Coord>
where Self: Sized { ... }
}