declare abstract class Sujet {
    private nom;
    protected prenom: string;
    constructor(nom: string, prenom: string);
    protected abstract activite(): void;
}
declare class Employe extends Sujet {
    private poste;
    private salaire;
    constructor(nom: string, prenom: string, poste: string, salaire: number);
    travailler(): void;
    protected activite(): void;
}
declare const personne1: Employe;
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