import { ElementRef } from '@angular/core';
import { LyTheme2 } from '../theme/theme2.service';
import { LyOverlayConfig } from './overlay-config';
import { StyleRenderer } from '../minimal/renderer-style';
import * as i0 from "@angular/core";
export declare const STYLES_BACKDROP_ROOT: () => (_className: string) => string;
export declare class LyOverlayBackdrop {
    private _el;
    readonly sRenderer: StyleRenderer;
    private _config;
    onclick(): void;
    constructor(_el: ElementRef<HTMLElement>, _theme: LyTheme2, sRenderer: StyleRenderer, _config: LyOverlayConfig);
    static ɵfac: i0.ɵɵFactoryDeclaration<LyOverlayBackdrop, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<LyOverlayBackdrop, "ly-overlay-backdrop", never, {}, {}, never, never, false, never>;
}