import { AbstractLinkedList } from "./abstract-linked-list";
import { BiDirectionalLinkedListEntry } from "./linked-list-entry";
import { List } from "./list";
export declare class BiDirectionalLinkedList<T> extends AbstractLinkedList<T, BiDirectionalLinkedListEntry<T>> implements List<T> {
    private last?;
    add(item: T): boolean;
    prepend(item: T): boolean;
    append(item: T): boolean;
    /**
     * TODO: if index is nearer to the end then iterate from the end
     *
     * @param index - index of element to be removed
     */
    removeItemAt(index: number): boolean;
    forEach(callback: (item: T, index: number) => boolean): void;
    forEachReverse(callback: (item: T, index: number) => boolean): void;
    clear(): void;
    remove(item: T): boolean;
}
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