import { BaseDirective } from './directive';
interface ResizeCallback {
    (entry: ResizeObserverEntry): void;
}
export declare class ResizeDirective extends BaseDirective {
    private observer;
    private callback;
    constructor(element: Element);
    mount(element: Element): void;
    update(callback: ResizeCallback): void;
    unmount(): void;
}
export {};
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