Rugina•armanazi•eroare•[e0046]: nu toate trăsătură elemente puse în aplicare, lipsă: `summarize_author`

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armanriazi•rugina•eroare•[E0046]: nu toate trăsătură elemente puse în aplicare, lipsă: `summarize_author`

//You must implement summarize_author and not only summarize
pub trait Summary {
    fn summarize(&self) -> String;
    fn summarize_author(&self) -> String;
}

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