import { type OnChanges } from '@angular/core';
import { type TuiPopover } from '@taiga-ui/cdk/services';
import { PolymorpheusTemplate } from '@taiga-ui/polymorpheus';
import * as i0 from "@angular/core";
export declare abstract class TuiPopoverDirective<T> extends PolymorpheusTemplate<TuiPopover<T, void>> implements OnChanges {
    private readonly service;
    private readonly open$;
    options: Partial<T>;
    open: boolean;
    readonly openChange: import("rxjs").Observable<boolean>;
    ngOnChanges(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TuiPopoverDirective<any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TuiPopoverDirective<any>, never, never, {}, {}, never, never, false, never>;
}