pub trait ImageU8 {
// Required methods
fn inner(&self) -> &image_u8;
fn inner_mut(&mut self) -> &mut image_u8;
fn data(&self) -> &[u8] ⓘ;
fn data_mut(&mut self) -> &mut [u8] ⓘ;
// Provided methods
fn width(&self) -> i32 { ... }
fn height(&self) -> i32 { ... }
fn stride(&self) -> i32 { ... }
}