import { List } from '../list';
import { Queue } from './queue';
/**
 * A linked list implementation of the {@link Queue} interface
 */
export declare class LinkedQueue<T> implements Queue<T> {
    /**
     * The list containing every element.
     */
    protected list: List<T>;
    /**
     * Instantiate the queue.
     *
     * @param elements - A set of elements to initialize the queue with.
     */
    constructor(elements?: Iterable<T>);
    clear(): void;
    dequeue(): T | undefined;
    enqueue(element: T): number;
    peek(): T | undefined;
    get size(): number;
    /**
     * Receive an iterator through the queue.
     *
     * **Note:** Unexpected behavior can occur if the collection is modified during iteration.
     *
     * @returns An iterator through the queue
     */
    [Symbol.iterator](): Iterator<T>;
}