import { Subscription } from 'rxjs';
import { QdPopoverComponent } from './popover/popover.component';
import * as i0 from "@angular/core";
export type PopoverCloseCallback = (excludedPopovers: QdPopoverComponent[]) => void;
export declare class QdPopoverService {
    private closeHandler;
    closeAllOverlays(excludedPopovers?: QdPopoverComponent[]): void;
    subscribe(callback: PopoverCloseCallback): Subscription;
    static ɵfac: i0.ɵɵFactoryDeclaration<QdPopoverService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<QdPopoverService>;
}
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