import { TemplateRef } from '@angular/core';
import { _RxVirtualViewPlaceholder } from './model';
import * as i0 from "@angular/core";
/**
 * The RxVirtualViewPlaceholder directive is a directive that allows you to create a placeholder for the virtual view.
 *
 * It can be used on an element/component to create a placeholder for the virtual view.
 *
 * It needs to be a sibling of the `rxVirtualView` directive.
 *
 * @example
 * ```html
 * <div rxVirtualViewObserver>
 *   <div rxVirtualView>
 *     <div *rxVirtualViewContent>Virtual View 1</div>
 *     <div *rxVirtualViewPlaceholder>Loading...</div>
 *   </div>
 * </div>
 * ```
 *
 * @developerPreview
 */
export declare class RxVirtualViewPlaceholder implements _RxVirtualViewPlaceholder {
    #private;
    templateRef: TemplateRef<unknown>;
    constructor(templateRef: TemplateRef<unknown>);
    static ɵfac: i0.ɵɵFactoryDeclaration<RxVirtualViewPlaceholder, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<RxVirtualViewPlaceholder, "[rxVirtualViewPlaceholder]", never, {}, {}, never, never, true, never>;
}