export declare class TypedPriorityQueue<T> {
    private array;
    private size;
    private compare;
    constructor(comparator: (a: any, b: any) => boolean);
    private static defaultcomparator<T>(a, b);
    add(myval: T): void;
    heapify(arr: T[]): void;
    private _percolateUp(i);
    private _percolateDown(i);
    peek(): T | undefined;
    poll(): T | undefined;
    replaceTop(myval: T): T | undefined;
    trim(): void;
    isEmpty(): boolean;
}