pub trait MaxItemCountOption {
// Required method
fn max_item_count(&self) -> i32;
// Provided method
fn add_header(&self, builder: Builder) -> Builder { ... }
}
pub trait MaxItemCountOption {
// Required method
fn max_item_count(&self) -> i32;
// Provided method
fn add_header(&self, builder: Builder) -> Builder { ... }
}