pub trait ComptimeIndexMut<I>: ComptimeIndex<I> + IndexMut<I> {
// Provided method
fn cube_idx_mut(&mut self, i: I) -> &mut Self::Output { ... }
}pub trait ComptimeIndexMut<I>: ComptimeIndex<I> + IndexMut<I> {
// Provided method
fn cube_idx_mut(&mut self, i: I) -> &mut Self::Output { ... }
}