Code shared from the Rust Playground

playground.rs

trait ReportCore {
    fn different_for_each_type(..);
}

trait Report : ReportCore {
    fn same_for_many_types(..);
}

trait StatReport : ReportCore {
    fn another_method(..);
}

impl<T: StatReport> Report for T {
    pub fn same_for_many_types(..) { .. }
}