import { IComparable } from '../Interfaces/Comparable';
export default class PriorityQueue<T extends IComparable<T>> {
    private heap;
    size(): number;
    isEmpty(): boolean;
    enqueue(item: T): void;
    dequeue(): T | null;
    peek(): T | undefined;
    clear(): void;
    private bubbleUp;
    private sinkDown;
    private compare;
    private swap;
}
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