/**
 * A mutable MAX HEAP data-structure.
 * It can also work as a min heap by inverting the `gt` parameter.
 */
export declare class MaxHeap<A> {
    private readonly gt;
    /**
     * Creates a new [[MaxHeap]] data structure.
     */
    static of<A>(gt: (a: A, b: A) => boolean): MaxHeap<A>;
    /**
     * Creates a new MaxHeap that works with numbers
     */
    static readonly numbers: MaxHeap<number>;
    private readonly stack;
    private constructor();
    /**
     * Returns the size of the heap
     */
    readonly length: number;
    /**
     * Returns the top most element on the heap
     */
    readonly peek: A | undefined;
    /**
     * Remove the top element from heap.
     */
    pop(): A | undefined;
    /**
     * Adds a new element to the heap
     */
    push(element: A): void;
    private areValid;
    private heapD;
    private heapU;
    private swap;
}