import * as i0 from "@angular/core";
export declare class TuiRipple {
    private readonly document;
    private readonly destroyRef;
    private readonly animationOptions;
    protected readonly nothing: undefined;
    tuiRipple: string;
    protected start(x: number, y: number, target: HTMLElement, el: HTMLElement): void;
    private createRipple;
    static ɵfac: i0.ɵɵFactoryDeclaration<TuiRipple, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TuiRipple, "[tuiRipple]", never, { "tuiRipple": { "alias": "tuiRipple"; "required": false; }; }, {}, never, never, true, never>;
}