export interface Orderable {
    order: number;
}
export declare class BufferedPriorityQueue<T extends Orderable> {
    queue: T[];
    buffer: T[];
    constructor();
    push(behavior: T): void;
    peek(): T | undefined;
    pop(): T | undefined;
    private heapifyBuffer;
    get length(): number;
    unsort(): void;
    clear(): void;
    private up;
    private down;
}