import { ElementRef, OnInit } from '@angular/core';
export declare class DroppableDirective implements OnInit {
    private el;
    drop: (event: any, ui: any) => void;
    over: (event: any, ui: any) => void;
    out: (event: any, ui: any) => void;
    accept: string;
    constructor(el: ElementRef);
    ngOnInit(): void;
}