declare class LinkedList<T> {
    private _tail;
    private _head;
    private _length;
    constructor(source?: Iterable<T>);
    get head(): LinkedListNode<T> | undefined;
    get tail(): LinkedListNode<T> | undefined;
    /**
     * Add a value to the start of the list
     * @param value the value to add to the list
     */
    unshift(value: T): number;
    /**
     * Remove and Return the value from the start of the list
     */
    shift(): T | undefined;
    /**
     * Add a value to the end of the list
     * @param value the value to add to the list
     */
    push(value: T): number;
    /**
     * Remove and return a value from the end of the list
     */
    pop(): T | undefined;
    get length(): number;
    isEmpty(): boolean;
    [Symbol.iterator](): Generator<LinkedListNode<T>, void, void>;
}
export declare class LinkedListNode<T> {
    value: T;
    prev: LinkedListNode<T> | undefined;
    next: LinkedListNode<T> | undefined;
    constructor(value: T, prev: LinkedListNode<T> | undefined, next: LinkedListNode<T> | undefined);
}
export default LinkedList;