export declare abstract class List<Type> {
    compareFunction: (e1: Type, e2: Type) => number;
    protected constructor(compareFunction?: (e1: Type, e2: Type) => number);
    abstract firstElement(): Type;
    abstract lastElement(): Type;
    abstract getElement(position: number): Type;
    abstract addFirst(element: Type): void;
    abstract addLast(element: Type): void;
    abstract addElement(element: Type, position: number): void;
    abstract deleteFirst(): Type;
    abstract deleteLast(): Type;
    abstract deleteElement(position: number): Type;
    abstract changeInfo(element: Type, position: number): Type;
    abstract forEach(callback: (e1: Type) => any): void;
    abstract size(): number;
    abstract isEmpty(): boolean;
    abstract subList(position: number, numberElements: number): List<Type>;
}