import { BaseDirective } from './directive';
interface LazyOptions {
    threshold?: number;
    placeholder?: string;
    onLoad?: () => void;
    onError?: (error: Error) => void;
    rootMargin?: string;
}
export declare class LazyDirective extends BaseDirective {
    private options;
    private observer;
    private isLoaded;
    mount(element: Element): void;
    private loadContent;
    update(options: LazyOptions): void;
    unmount(): void;
}
export {};
//# sourceMappingURL=lazy.directive.d.ts.map