declare class Node<T> {
    data: T;
    next: Node<T> | null | undefined;
    constructor(data: T, next?: Node<T> | null);
}
export declare class LinkedList<T> {
    head: Node<T> | null | undefined;
    size: number;
    constructor();
    insertFirst(data: T): void;
    insertLast(data: T): void;
    insertAt(data: T, index: number): Node<T> | undefined;
    getAt(index: number): Node<T> | null;
    removeAt(index: number): void;
    clearList(): boolean;
    getListAsArray(): Array<T>;
    printList(): void;
}
export {};